柱

Grit, fly ash, cinder residue, active carbon, air brick detritus were used as filtering media according to proper proportion for low concentration domestic sewage treatment.

选取粗砂、粉煤灰、细煤渣、活性炭和空心砖粉块作为介质，再按适当的比例配成填料处理柱，进行处理低浓度生活污水的研究。

In wind instruments the sound is produced by a vibrating air column.

管乐器的声音是由振动的气柱产生的。

The narrow column of air which rests upon our shoulders weighs almost 2,000 pounds.

我们的双肩上所承受的细长的空气柱的重要几乎有2000英磅重。

You have to divide the column of air into a set of levels, get out your pencil or computer, and calculate what happens at each level.

你必须将气柱分解为很多不同的层，拿出你的纸和笔，计算在每一层的情况。

A tornado is a rotating ② column of air from a thunderstorm to the ground. The most

龙卷风是指一个从空中的雷暴延伸到地面而生成的旋转气柱

A more or less vertical column of air whirling around itself as it moves over the surface of the Earth.

风暴在地表上移动时或多或少形成的一个旋转垂直的空气柱。

A tornado or lesser whirlwind occurring over water and resulting in a funnel-shaped whirling column of air and spray.

水上生成的飓风或稍弱之旋风，形成漏斗状旋转的空气柱和水柱

Device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone .

黄铜的管乐器中改变空气柱的长度来变化音调的装置。

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。

DOAS can be used not only to the measurement of air pollutants near the surface, but also to the measurement of column density of air pollutants, even in the global monitoring of air pollution by satellite instruments.

这种方法不仅可以用在大气污染气体浓度的近地面测量上，还可以用来测量大气污染气体的柱浓度，以及用到卫星仪器对大气污染状况的全球测量上。

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。