查询词典 fraction of coverage

Hypoxic-ischemic encephalopathy experimental grouping: Sixteen successful C57/BL6J mice models, aged 7 days, were randomized into 2 groups: experimental group (n =8), following ligation of right common carotid artery, mice were placed in the closed container containing 0.08 volume fraction of oxygen and 0.92 volume fraction of Nitrogen gas, and taken out 1.5 hours later; 3 μL ESCs were injected into the right cerebral ventricle at about 1 week, and control group (n =8), in which, the same amount of PBS was injected into the right cerebral ventricle.③ At 12 weeks after transplantation, the survival and migration of induced ESCs labeled by Lac-Z in the spinal cord and brain were observed by zymologic method.

缺氧缺血性脑病实验分组：将造模成功的鼠龄7 d的C57/BL6J16只小鼠随机分为2组：实验组8只，结扎右侧颈总动脉后将小鼠置入含体积分数0.08氧气和体积分数0.92氮气的密闭容器内，1.5 h后取出；1周后在右侧脑室内注入3 μL诱导胚胎干细胞。

TA different mole fraction of the mass fraction of polymer in water were low.

不同TA摩尔分数的聚合物的质量分数均较其在纯水中低。

The experimental result showed that, the fraction oil depickling solvent technology has wide scope of material oil, and the sodium hydroxide amount used to drop 67~75%, emulsifies completely eliminates, the fraction oil loss drops 50~60%; The depickling solvent regenerative cycle use, doesn't have the waste lye to discharge, the environmental pollution is degraded greatly.

实验结果说明，馏分油脱酸剂技术具有适应原料范围宽，烧碱用量下降67%～75%，完全消除乳化，馏分油损失下降50%～60%；脱酸剂再生循环使用，无废碱液排放，环境污染大为降低等优点。

Data from TM images from the years1986,1993, 2000 and 2006 around Shenfu coalmine area were used to exbract normalized difference vegetatio n index by the software ERDAS firstly, then using spatial modeler of ERDAS compute vegetation fr action and classify through unsuperˉ vised classification.Finally,we get vegetation fraction mapping of c oalmine within 1986～2006.It clearly inˉ dicate that the coalmine vegetation fraction increase in whole but d ecrease in some colemine district.

通过利用榆林市神府矿区1986、1993、2000、2006年四景同期TM影像数据，使用ERDAS软件首先提取植被指数，根据像元二分法利用ERDAS的建模工具Spatial Modeler计算出矿区的植被覆盖度，利用非监督分类方法对矿区的植被覆盖度进行分类、赋色，最后得出矿区1986～2006年的植被覆盖度分类图，定量的说明了矿区20 a年间的植被覆盖变化情况：植被覆盖度整体提高，在局部矿区则有所降低。

On the basis of the Washburn principle , the contact angles of various liquids such as deionized water, sodium chloride solution of mass fraction 0.05, ethanol and ethanol-water solution of volume fraction 0.15 on the sediment surface were measured by the JF99A contact angle meter with osmotic pressure method.

根据Washburn原理研制的JF99A型粉体接触角测量仪，是利用渗透压力法测定粉体的接触角。

After analyzing the performance anduncertainty of the DDPM vortex flowmeter in gas-liquid bubble flows, the vortexflowmeter-Venturi tube combinative method using the vortex flowmeter and the Venturi tube as measuring cells was put forward, the measurement model based on thevortex frequency and the Venturi differential pressure was established, and it showsthat the relative errors of this method for the mass flow measurement of bubble flowsare within±5%. Furthermore, the flowrate and volume void fraction of bubble flowswere obtained using a single DDPM vortex flowmeter through the relationshipbetween the frequency and amplitude of the circumferential DDPM signal, and resultsdemonstrate that the relative errors of the flowrate and volume void fraction of bubbleflows are within±5% and±10% respectively, which indicates the broad applicabilityof this method to large numbers of engineering fields.

通过分析管壁差压式涡街流量计在气液泡状流中的性能和不确定度，提出了以涡街流量计和文丘里管作为测量元件的&涡街—文丘里联合法&，建立了以涡街频率和文丘里差压为被测量的测量模型，该方法对气液泡状流质量流量的测量相对误差可达±5％；通过建立涡街周向管壁差压信号频率和幅度与被测流体的关系，使用单个涡街流量计实现了对气液泡状流流量和体积含气率的双参数测量，该方法对气液泡状流流量和体积含气率的测量相对误差分别为±5％和±10％，可以满足大量工业实际应用的要求。

From the point of view of structure,bamboo cell wall ratio,amount of bundle per unit area,fraction of bundle sheath,fraction of vessel increase from the root to the top of the bamboo,while fractionof parenchyma.Single bundle sheath area decreases with the increase of height.Fiber length,fiber width and vessel length increase from the root to the top andget theirs maximum value at the length of 17th node to 23rd node and thendecrease.Fiber length and width ratio slightly decreases while vessel widthincreases with the increase of height.

从构造角度来说，竹材胞壁率、单位面积维管束个数、纤维束比量、输导组织比量从基部到到梢部随着高度增加而增加，而薄壁组织比量、单个维管束纤维束面积随着高度增加而减小；纤维长度、纤维宽度、导管长度从基部到梢部随着高度的增加而增加，在第17竹节到第23竹节达到最大值，而后下降，纤维长宽比随着高度的增加而缓慢下降，导管宽度随着高度增加而一直增加。

Based on the above two experimental studies,we inferred the main combustion characteristic at high altitude which was that the flame radiation coefficient was obviously lower than that in atmospheric region and the mechanism which was due to higher volume fraction of carbon particles than that under atmospheric pressure.To validate this infer,the focus of last experimental study was on the volume fraction of carbon particles in the flame.

前两部分实验研究我们分析得到高原地区的主要燃烧特性是火焰辐射系数明显低于常压地区，其机理是由于火焰中的碳颗粒体积分数高于常压下的，为了验证这一推断，最后一部分实验研究的重点是火焰中碳颗粒的体积分数。

Make use of the master fraction of the Flash manufacture lesson piece, and character elucidation, test an etc., the Robo Demo 4 manufacture the video elucidation of the lesson piece fraction, make use of the Pro 2.1 sounds of the Cool Edit to carry on the edit pass type convert.

利用Flash制作课件的主体部分，以及文字说明、测试题等，Robo Demo 4制作课件的视频说明部分，利用Cool Edit Pro 2.1对声音进行编辑及格式转换。

Maintaining engine operating at constant load and varying the argon fraction in the intake charge, the influence of argon fraction in the intake charge on the performance of a closed cycle diesel engine was studied.

恒定柴油机负载，改变混合进气中氩气的含量，分析了进气混合气中氢气含量对闭式循环柴油机性能的影响。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。