空气柱

One mechanism of temperature effect is that temperature influence water characters, such as surface tension and viscidity, the other one is that temperature affect on the quantity of air in experiment column.

温度对土壤水分运动和保持的影响一方面是由于温度影响水的表面张力和粘滞性，另一方面是由于温度影响密封土柱中空气的含量。

A tornado is a violent, rotating column of air which is in contact with both the surface of the earth and a cumulonimbus cloud.

龙卷风是一种暴力，旋转柱空气接触而同时与地球表面和积雨云。

Roll the head of the plunger into the water so you force water, not air, into the drain.

辊长柱塞下水你力量水，没有空气，到茅厕。

Open bleed port at high point in system and vent trapped air until a solid stream of liquid emerges.

打开系统较高点的泄放口，排出收集的空气，直至液体液柱流出现

Air permeability of field soil was obtained k1=4.8446×10^(-12)m^2 by soil column method. Meanwhile, relative permeability curve of air-water was gained by biphase flowing experiment. During experiment period, average of soil water content was 0.2689g and pH value was 7.0-8.5. The quantity of aboriginal animalcule went down sharply after pouring contamination into the ground and then rose gradually to its original level which was 10^7 (unit g1dry soil).

采用土柱法测得现场土壤的空气有效渗透率为k1=4.8446×10^(-12)平方公尺，通过气液两相流动试验得到气－液相对渗透率曲线；试验期间土壤平均含水量为0.2689g，pH值在7.0-8.5之间；微生物含量在注入污染物及营养盐后先下降后回升，驯化后期细菌密度达10^7（个g^(-1)干土）数量级。

Methods Capillary gas chromatography and FFAP capillary column were applied; active carbon tube was used to collect the organic solvent samples in the air of workplaces, the samples were dissolved with carbon bisulfide and determined with capillary gas chromatography.

采用毛细管气相色谱法，选用FFAP毛细管分离柱，用活性炭采集工作场所空气中有机溶剂，经二硫化碳解析后进样测定。

On the basis of twin-roll thin strip continuous casting experiments and solidification structure characteristic analysis of thin strip and combining with the simulation results of effects of technological parameters, the forming mechanism of solidification structure zone (especially equiaxed crystal zone) on 1Crl8Ni9Ti stainless steel twin-roll thin strip was investigated.

在双辊薄带连铸实验和薄带凝固组织特征分析的基础上，结合对薄带凝固组织区的模拟预测结果，研究了1Cr18Ni9Ti不锈钢双辊薄带凝固组织区的形成机理。结果表明：1Cr18Ni9Ti不锈钢双辊薄带凝固组织中的等轴晶区不但在凝固类型为半固态时形成，在轧制或理想型时也能形成。其形成机理为，熔池中悬浮游离晶体的沉积、聚集以及在枝晶生长前沿的长大和薄带离开二铸辊最小间隙后，薄带/空气界面换热系数骤然降低抑制了柱状枝品的生长，并促使薄带中部未凝固熔体中游离晶体的择优长大

How much does one cubic foot of air weigh at 0℃ and 76 cm. pressure?

一立方英尺空气在0℃和76厘米汞柱压力下重多少？

If the air drag and composite motion are considered in the analysis of the balloon yarn in ring spinning,the calculation with the circular cyclindrical coordinates is simpler and more precise.

在环锭纺气圈的分析中，用柱面坐标系计算能简明、清晰地反映空气阻尼力、复合运动诸因素的综合影响。本文介绍了根据照相测量的气圈形态参数计算纱线张力的新方法

Methods: Mesityl oxide in the air was sampled by active carbon tube and desorbed by the solvent of carbon disulfide which included 1% methanol, then separated by HP-5 capillary column,and finally detected by mass detector.

工作场所空气用活性炭管采集，经1%甲醇的二硫化碳溶液解吸，HP-5毛细色谱柱分离，气质联用仪检测。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。