The mass per unit volume of a substance under specified conditions of pressure and temperature.
在特定压力和温度条件下某物质单位体积的质量。
Direct yarn number is the mass per unit length of yarn; indirect yarn number is the length per unit mass of yarn.
定长制纱线细度是以纱线单位长度的重量表示的；定重制纱线细度是以纱线单位重量的长度表示的。
The design concept consists of a hybrid composite and metallic/ polymer flexible pipe with optimized mass per unit length for ultra-deepwater applications.
设计的基本思想是开发一款可适用于超深水应用的，具有最优单位长度质量的混合复合材料和金属/聚合物柔性管。
Because cooler air has a higher density (greater mass per unit volume), cold air intakes generally work by introducing cooler air from outside the hot engine bay.
因为冷气流密度较高(更大的质量单位体积内)，冷空气引入采一般的工作从外面冷空气热引擎湾。
Leaf fresh mass, water content, leaf mass per unit area, leaf area and pigment of back mutation were approximately the same as green leaves of its red-leaf variations;
②回复突变的红花檵木叶鲜重、含水量、比叶重、叶面积和色素特征等特征均与转绿叶片相似；
Because these galaxies' mass is spread out over larger areas, they have far fewer stars per unit volume than do conventional galaxies.
因为这些星系的质量分布在更大的区域，它们每单位体积的恒星数量比传统星系要少得多。
The larger animals require less food per unit mass, more efficiently storing carbon than smaller animals.
较大的动物每单位质量需要的食物较少，却能比小型动物更有效地储存碳。
The insects generally produced less methane, nitrous oxide and ammonia both per unit of body mass and per unit of mass gained than pigs or cattle.
通常情况下，同猪和牛相比，每单位体重或增加每单位体重，昆虫产生更少的甲烷、一氧化氮和氨气。
Because of the tremendous amounts of energy liberated per unit mass in a nuclear detonation, temperatures of several tens of million degrees centigrade develop in the immediate area of the detonation.
由于核爆时每单位质量所释放的巨大能量，爆炸中心将产生数千万摄氏度高温。
This product is brushing the area per unit mass, and the production process is simple, no special requirements, processing of simple, low processing costs.
本产品单位质量的涂刷面积大，且制作工艺简单，没有特殊要求，加工简单，加工成本低。
The cost of the equipment described by Dr. Walter was then $1.48 per unit, but, when the bags were in mass production, it was expected that the unit cost would be reduced to 45 to 50 cents.
瓦尔特博士描述的设备，在那时的价格是每套1.48美元，但是，当这些袋子被大量生产时，人们预计每套的成本会减少到45美分到50美分之间。
The explosive potential (energy content per unit mass) of hydrogen is about twice that of the methane in natural gas.
氢的爆炸潜能(单位质量含有的能量)大约是天然气中甲烷的两倍。
In higher viscosity and higher power dissipation rate per unit mass, micromixing ability of full-zone is better than paddle impeller.
粘度增大，单位体积功增大时泛能式桨微观混合效果优于二叶平桨。
The analysis includes the concentration ratio at the base of a GCL, advective and diffusive mass flux, and total accumulated contaminant mass through the liner per unit area.
从衬垫底部浓度比、对流和扩散通量、污染物累积运移量等方面，对污染物在GCL中的运移进行了计算。
Using the single mass-spring model, we study the gaits of a hopping robot for the purpose of minimizing the loss of energy per unit distance covered and present our expressions of energy consumption.
基于单质量-弹簧模型，研究了能够使弹跳机器人单位距离能量损失最小的步态，给出了能量的消耗表达式。
Uni 5114 woven and unwoven items-Determining the linear density and the mass per length unit.
UNI 5114机织和非机织材料-线性密度和长度克重的判定。
The relationship between the heat-transfer coefficients and the power consumption per unit mass of the fluid is used to ob…
为了得到三种组合桨的传热膜系数的通用关联式，本文采用了传热膜系数与单位质量功之间的关联。
By analyzing the experimental results, the trend line of the efficient shock wave energy per unit mass decayed with the scale distance was obtained.
通过对试验结果进行分析，拟合得到了有效比冲能随距离变化的趋势线。
By analyzing the experimental results, the trend line of the efficient shock wave energy per unit mass decayed with the scale distance was obtained.
通过对试验结果进行分析，拟合得到了有效比冲能随距离变化的趋势线。
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