查询词典 breech-loading

The results indicated that following the increase of acetanilide loading, PVC crystalline was raised first and then decreased, when acetanilide content was 3%, PVC crystalline reached the maximum and the tensile strength was the strongest; the micro morphology was changed from an even cloud-like structure to an fiber like network, and the perfection of the network was raised first and then lowered, as made the elongation at rupture rise first and then decline.

结果表明：随着乙酰苯胺质量分数的增加，PVC结晶度先增后降，当乙酰苯胺质量分数为3%时，PVC结晶度最大，拉伸强度也最大；微观结构逐渐由均匀的云片状结构变成网络结构，且网络的完善性先增后降，使得材料的韧性先增后降。

In this paper,acetanilide,adipic acid and potassium hydrogen phthalate were chosen as additives to advance polyvinyl chloride to crystallize. The effects of compress mold,annealing temperature and time,additive property and loading on the crystallization,microscopicmorphology and mechanical properties of PVC were studied by means of wide angle X-ray diffraction,differential scanning calorimetry,fourier transform infrared spectrophotometer,scanning electron microscopeand tensile test.

本文利用乙酰苯胺、己二酸和邻苯二甲酸氢钾作为聚氯乙烯结晶改性的添加剂，通过广角X-射线衍射法、差示扫描量热法、傅立叶转换红外光谱、扫瞄电镜和万能电子实验机研究了热压、热处理温度和时间、添加剂结构和质量分数对PVC结晶、微观形态和宏观机械性能的影响。

The highest H〓S loading of the process is 6500gS/(m〓 padding d), which is far more high than that of similar process that runs under the neutrophilic condition, and is about 2 to 3 times of that of trickling filter bed under acidophilic condition.

包埋固定化微生物滴滤床处理硫化氢的最大负荷为6500g/m〓填料·d，远高于中性运行的同类装置的负荷，也比同样为酸性环境下运行的生物膜滴滤床负荷高2～3倍。

Meanwhile the process conditions of catalyst on preparing acrolein with glycerol were investigated by using continuous-flow fixed bed reactor. The effects of conditions of catalyst sorts, loading of heteropoly acid, reaction temperature etc.

同时利用常压连续流动的固定床反应器考察该催化剂对甘油制备丙烯醛的工艺条件，研究了催化剂的种类、杂多酸的负载量、反应温度等条件对反应的影响。

In this paper, a control method aiming at electric actuator hydraulic loading system is discussed and designed.

本文针对电动舵机动态加载系统的控制策略进行了研究与设计。

When the powder loading was fixed as 58%,the molded compact of a gearwheel whose addendum circle diameter is 700 μm was obtained with well shape retention.

3μm的羰基铁粉和石蜡基热塑性粘结剂体系，当粉末的装载量为58%时，获得了形状良好的齿顶圆直径为700μm的微型齿轮注射生坯。

In addition, some experience formulas for them are regressed. The third chapter establishes a unified S-N curve equation to calculate multi-axial fatigue ultimate strength of concrete considering both the effect of confinement and minimum/maximum stress ratio, based on the triaxial fatigue test data in this paper and the test results under uniaxial and biaxial fatigue loading in previous literatures. Moreover, the consistency of calculating condition fatigue ultimate strength with fatigue life distribution and initial ultimate strength distribution is analyzed.

第二章简要地介绍了本文三轴疲劳试验装置，进行了两向等侧压约束下混凝土立方体试件三轴受压等幅和变幅疲劳试验，分析了三轴受压疲劳破坏机理，给出了相应的疲劳破坏试验判断标准；得到了混凝土在两向侧压约束下单级和多级受压疲劳的变形发展规律，包括最大纵向应变、残余应变、最大纵向应变率和疲劳变形模量等随循环次数的发展规律以及疲劳损伤的演变规律，并给出了相应的经验公式。

In the following section, the realization mechanism of memory distribution and bootcode of Microcontroller AT91M40800 is introduced, and the memory distribution file is written in order to define the address mapping relationship of software code and data during loading and running.

在操作系统平台建立之后，文章研究了AT91M40800的内存分配以及启动代码的实现机制，并编写了scatter内存分配文件，以定义本系统软件代码和数据在程序加载和运行过程中的地址映射关系。

In this dissertation, the mechanical behavior of the metal adhesively bonded composite joints under loading have been systematically investigated by numerical calculation methods and experiments, and effects of shape dimensions and physical parameters of joints on stress distribution and strength of adhesively bonded joints have been placed emphasis upon.

本文在对国内外关于金属-胶层复合材料接头力学性能数值研究及发展现状进行综述的基础上，运用有限元法并结合实验手段主要研究了胶接接头承载后的力学行为，综合考虑了几何尺寸和物性参数对接头强度和应力分布的影响，并运用层次分析法对胶接质量进行综合评估，综合考虑接头形式，制造工艺，操作人员素质等因素的影响。

As the foundation of ultrasonic testing of composite materials, this thesis is intended to explore in detail a number of features of wave propagation in anisotropic plates, and the following essential problems will be considered:(1) Propagation of plane bulk waves in homogeneous and orthotropic anisotropic media;(2) Lamb wave propagation in multilayered anisotropic plates;(3) Influence of isotropic solid or liquid loading on Lamb wave propagation in anisotropic solid media;(4) Influence of interface layers on Lamb wave propagation in layered anisotropic composite laminates;(5) Dispersion characteristic analysis of attenuation Lamb wave while existing an thin viscous layer which is used for simulating the poor curing in adhesively bonded joints.

作为复合材料超声检测的基础，本文研究了如下国际前沿性的课题：（1）平面体波在正交均匀各向异性媒质中的传播；（2）多层各向异性媒质中Lamb波的传播；（3）各向同性固体或液体负载对各向异性固体媒质中Lamb波传播的影响；（4）界面层对层状各向异性复合媒质中Lamb波传播的影响；（5）胶粘剂未固化而呈现粘弹性时粘接结构中衰减Lamb波的频散特性分析。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。