- 更多网络例句与体积相关的网络例句 [注：此内容来源于网络，仅供参考]
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To give the definition of the mass concrete and to concrete\'s cracks together with practical meanings of control ,and give a brief review on the research in the field at home and abroad, at last, methods to control temperature crack of the mass concrete from several aspects such as design measures,concrets material, construction schedules.etc are summed up; To explain the physical mechanics of the concrete and computing methods-Difference Method and Finite Element Method, and illustrate the application of their specific methods repectively;Several temperature factors that can influence the temperature stress of mass concrete baseplate are analyzed. The influence degree of temperature factor can be got through the ANSYS simulation computation the control of temperature can control the temperature stress, consequently control the temperature crack of mass concert baseplate; through the influence of the crack resistance ability of mass concrete baseplate which takes the reinforcement as a part is analyzed. By ANSYS simulation, the best suited volume ratio of reinforcement is found out, at same time the layout of reinforcement with the same volume ratio can also affect the resistance ability of mass concrete baseplate. Sum up of above analysis, anti-crack function of steel bar in early mass concrete baseplate is obvious, so it\'s necessary to consider beneficial effect of construction steel bar in research of temperature control on mass concrete baseplate.
本文先容了大体积混凝土及混凝土裂缝的基本概念，对国内外在这个领域里的研究现状作了扼要叙述，并从结构设计、混凝土材质、施工措施等方面总结了大体积混凝土温度裂缝控制的方法及防止措施；阐述了混凝土的基本物理力学性能，总结了大体积混凝土温度计算的方法——差分法和有限元法，并分别举例说明其具体应用的方法；分析了影响大体积混凝土底板温度应力的几种温度因素，利用ANSYS模拟计算，得出了每种因素的影响程度，通过分析提出了在这几种温度影响因素下如何通过控制温度以达到控制温度应力从而来控制裂缝的具体建议；针对大体积混凝土基础底板中配筋的不同对混凝土底板抗裂能力的影响不同，利用ANSYS进行模拟分析，得出底板中最合适的体积配筋率，同时分析了在相同体积配筋率下钢筋的具体布置对大体积混凝土基础底板抗裂能力的影响，分析表明，配置钢筋对混凝土结构的开裂阻止作用明显，在研究大体积混凝土温度裂缝题目时，要考虑钢筋在其中的有利作用。
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In common glass fiber reinforced polyolefine pipe, when the volume faraction is less than the critical value, the glass fiber can not act as reinforcement, on the contray, it would reduce the whole intensity of the compound material. However, when extruded in combined stress field, the extend intensity of the compound system increases when the volume fraction of glass fibers is less than the critical value. When the glass fiber volume fraction is higher than the critical value, the required glass fiber volume fraction of compound fibers extruded in the combined stress field is less than theory value.
一般玻璃纤维增强管材在常规挤出时当添加的玻璃纤维体积含量小于临界体积分数(当添加的玻纤的复合体系拉伸强度等于基体聚合物材料的拉伸强度时的玻纤体积分数)时，玻纤起不到增强的作用，反而会使复合材料的整体强度降低；但在复合应力场下挤出时，当添加的玻纤含量小于临界体积分数时，复合体系的拉伸强度不但没有降低反而升高了；当添加的玻纤含量大于临界体积分数时，复合体系要达到同样强度，经过复合应力场的玻纤增强管材需要的体积分数小于理论值。
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The results under the oil lubricate friction conditions were similar with those under the dry friction conditions. The wear mechanism of 3Cr13 matrix alloy was micro-cutting and distorting wear. For the composites with a low fraction of TiC particle, distorting wear dominated and cutting was partly operating. For the composites with a high fraction of TiC particle, stress fatigue wear and wear of hard phase decohesion has occurred, but the main wear mechanism was still distorting wear. When the wear experiments were performed under the oil lubricate friction conditions, the main wear mechanism has became to abrasive wear and fatigue wear for the composites with the low TiC fraction, and fatigue wear would be to dominate for the composites with the high TiC fraction. There were similar wear mechanisms in H13 and 1Cr18Ni9 matrix composites.
在干摩擦条件下，3Cr13基体合金的磨损机理为显微切削和变形磨损；低体积分数的复合材料磨损机制以变形磨损为主，兼有少量的切削磨损机制；高体积分数的复合材料磨损机制以变形磨损为主，兼有应力疲劳磨损和脆性相剥落磨损；在油润滑摩擦条件下，3Cr13基体合金的磨损以磨粒磨损为主；低体积分数的复合材料磨损为磨粒磨损和疲劳磨损；高体积分数的复合材料磨损以疲劳磨损为主。H13、1Cr18Ni9基体及其复合材料的磨损机制类似于3Cr13基体及其相同体积分数的复合材料。
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We use the Taylor series expansion method to get the second-order approximate expression of the confidence region of the parameters, and then according to the principle of minimizing the volume of the confidence region, this paper carries out experimental design for the regression model, and then fixes the point range in the domain of definition of design variable for the model function so as to select the designing point, which can minimize the volume of the confidence region.
文章首先计算指数族非线性模型的回归参数β在1-α置信水平下的置信域的体积，为了便于计算，需把置信域投影到切空间中去，投影后的置信域是一个椭球体，用Taylor展开方法对此椭球体的体积进行二阶近似，推出原参数置信域的体积的近似表达式，然后对回归模型进行试验设计，根据置信域体积最小准则，在模型函数的设计变量的定义域上确定点列，选取使置信域体积达到最小的设计点。
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The results show that the vague point of gasoline and ethanol increase as the increasing water content of ethanol without adding the additives; dispersant can evidently decrease the gasohol's va...
结果表明，无分散剂时，随着乙醇中水的体积分数的增加，乙醇汽油的分层温度逐渐升高；加入主分散剂可以显著降低乙醇汽油的分层温度，而少量助剂B、C可显著改善主分散剂A1的助溶效果；随着分散剂体积分数的增加，乙醇汽油的分层温度逐渐降低；在乙醇体积分数为10%，乙醇中水的体积分数为4.3%，分散剂的体积分数为2.91%，其组成V(A1)∶V∶V为90∶7.5∶2.5时，乙醇汽油的分层温度可达到-25℃。90号汽油的辛烷值调合后提高到93号，且其T10和T50点均较调合前低。
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Results show that floes' VC and D at the surface water were closely related to current velocity; and the peaks of VC lag those of the current velocity. The lag variation during ebb and flood tides is 10-30min and 30-50 min, respectively. Current velocity at 50 cm/s is a turning point of D vs. vertical average current velocity, before the point, Dm increases with current velocity, and decreases after the point. Similarly, VC at 75μl/L becomes a critical point in the surface water, below the point, D increases with VC, and above the point, D stabilizes.Δp is D dependent, larger floes have much lower Δp than smaller floes. Both D and Δp of floes affect ω. In the surface water during spring tide and neap tide, a power exponent relationship exists between Δp and D, and ω and D.
研究表明：①长江口徐六泾表层絮凝体体积浓度主要受水流流速影响，再悬浮现象明显，体积浓度过程线滞后流速过程线，落潮期间滞后10-30min，涨潮则滞后30-50min；②小于一定流速时絮凝体平均粒径随流速增大而增大，大于一定流速时絮凝体平均粒径则随流速增大而减小，徐六泾夫、小潮表层絮凝体在50cm/s的垂线平均流速时出现平均粒径与垂线平均流速关系的转折；③徐六注大、小潮表层絮凝体平均粒径在体积浓度75μl/L时出现平均粒径与体积浓度关系的转折，体积浓度小于75μl/L时粒径随体积浓度增加而增大，超过75μl/L时粒径随体积浓度的增加变化不明显；④絮凝体有效密度由粒径大小控制，粒径大，有效密度小，反之亦然，粒径和有效密度共同决定絮凝体静水沉速，有效密度和沉速与平均粒径之间均存在良好的幂指数关系。
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It was found the wear volumes of cera -mits and east irons were reduced in water Lubrication. Wear volumes of grey easts were greater than that of ductile iron when matched with Al2O3, and the wear volumes of steel were the greatest. The wear volumes of Al2O3 against east iron was greatly smaller in air than against steel.
结果表明：蒸馏水润滑下Al2O3及铸铁的磨损体积均小于在干磨擦条件下；在同一润滑条件下，钢的磨损体积大于铸铁磨损体积，球墨铸铁磨损体积最小；陶瓷Al2O3磨损体积在干摩擦时与铸铁配副时比与钢配副时要小得多。
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Tz = 2Gk q 即 z = 2Gk q /T 40 Suppose the volume between membrane and the boundary plane is V, and we notice that 2 ∫∫ d x d y = M Then we have Thereby we have q qM V =∫∫ zdxdy =∫∫ dxdy = 2GTk 4GTk M 2 Gk = 2V q /T From τ zx =τ xz =, y z 2Gk τ zx /= y q / T τ z y =τ yz = x 41 Moreover, we get 设薄膜及其边界平面之间的体积为V,并注意到 2 ∫∫ d x d y = M 则有从而有由又可得 q qM V =∫∫ zdxdy =∫∫ dxdy = 2GTk 4GTk M 2 Gk = 2V q /T τ zx =τ xz =, y z 2Gk τ zx /= y q / T τ z y =τ yz = x 42 Adjust the pressure q of which the membrane is under, and make the rights of formulas,, equal to one, then we can gain some conclusions as follows:(1) The stress function of wringed pole equals to the uprightness angle of the membrane (2) The torsion M which wringed pole received equals to two times of the volume between the membrane and the boundary plane.
o b y a x 43 调整薄膜所受的压力q，使得，，三式等号的右边为1，则可得出如下结论：(1)扭杆的应力函数等于薄膜的垂度z。(2)扭杆所受的扭矩M等于该薄膜及其边界平面之间的体积的两倍。
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The bulk modulus describes volumetric elasticity, or the tendency of an object's volume to deform when under pressure; it is defined as volumetric stress over volumetric strain, and is the inverse of compressibility.
体积模量，描述了测定体积的弹性，或者说一个物料在压力作用下的体积相对于变形的程度；它被定义为体积应应变下的体积应力，且是体积柔量的倒数。
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Secondly, two physical models were constructed, which could model rough surface and describe the features of the earth surface, such as chine, neck, valley and hill, etc. According to difference method, the ""true"" volume of the physical models were measured, which was 13260cm3 and regarded as the analysis foundation of the precision of the volume that was calculate by DEM. The discrete dada of the models on a regular spacing of 1cm were collected by 3SPACE FASTRAK and the DEM was obtained by interpolating the discrete dada through GIS software. Based on the volume of the models calculated by DEM, different interpolating methods (IDW, Spline, Natural Neighbor, and Kriging) and variation of grid spacing of data were compared and their effects on precision of volume calculation were analyzed.
构建了可模仿凸凹不平地形表面的实体模型，该模型能够表征山脊、山尖、山涧、丘陵等地形特征；根据体积差减法测量实体模型的体积作为数据精度分析的体积&真值&，该值为13260cm~3，作为采用DEM进行体积计算的基准值；利用精度为0.08cm的三维数字化仪采集间距为1cm的离散数据点，对离散数据点用GIS软件进行内插处理生成DEM模型，通过DEM计算出模型的体积，探讨不同内插方法(IDW、Spline、Natural Neighbor和Kriging)和数据格网间距变化对体积计算精度的影响。
- 更多网络解释与体积相关的网络解释 [注：此内容来源于网络，仅供参考]
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blob volume：油滴体积
blind pore volume 盲孔隙体积 | blob volume 油滴体积 | boosted volume 增压体积
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bulk modulus：体积模量
bulk modulus of elasticity 体积弹性模量 | bulk modulus 体积模量 | bulk permeability 按体积平均渗透率
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bulk modulus of elasticity：体积弹性模量
bulk factor 体积因数 | bulk modulus of elasticity 体积弹性模量 | bulk modulus 体积模量
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bulk density：体积密度
在生长物性因子方面,菱角果仁重量、体积及总体积密度(bulk density)都会随生长天数的延长而呈现上升之趋势,其总体积密度会由0.58 g/ml上升至1.16 g/ml.
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coefficient of cubical expansion：体积膨胀系数
coefficient of cubical elasticity 体积弹性系数 | coefficient of cubical expansion 体积膨胀系数 | coefficient of volume compressibility 体积压缩系数
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coefficient of cubical expansion：体积膨胀系数 {物}
50. 体积粘性 volume viscosity; | 51. 体积膨胀系数 {物} coefficient of cubical expansion; | 52. 体积平衡模式 volume balance model;
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plethysmograph：容积描记器 体积描绘仪 体积描记器 脉搏计
plethysmogramtransducer容积描记图换能器 | plethysmograph容积描记器 体积描绘仪 体积描记器 脉搏计 | plethysmography体积描记法 容积描记法
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volume resistivity：体积电阻率
(30)体积电阻率(Volume resistivity) 也叫体积电阻、体积电阻系数,是表征电介质或绝缘材料电性能的一个重要指标. 表示1cm3电介质对泄漏电流的电阻,单位是Ω.m或Ω.cm. 体积电阻率愈大,绝缘性能愈好.
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volume susceptibility：体积磁化率,体积敏感度
volume surface mean diameter 体积面积平均径 | volume susceptibility 体积磁化率,体积敏感度 | volume unit indicator 响度单位计
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volume resistance：体电阻,体积电阻,体积阻力
volume regulator ==> 音量调整器 | volume resistance ==> 体电阻,体积电阻,体积阻力 | volume resistivity ==> 体电阻率,体积电阻系数=>体積抵抗率