查询词典 water column

The distributor plate at the bottom of the column. A constant high flow rate and head of water in the column and at the eductor inlet is maintained by circulating it through a pump and storage tank, in a closed loop.

用内环流中的泵和储水罐中的循环水来维持气馏柱和喷射口部分恒定的高速水流。

The chromatographic column is Nucleosil the C18 column (4.6mm×250mm,5μm); Flowing for methyl cyanide - water =1∶2; The speed of flow is 0.8ml/min; The examination wave length is 205 nm; The speed is 0.4mm/min.

色谱柱为Nucleosil C18柱(4.6mm×250mm，5μm)；流动相为乙腈-水＝1∶2；流速为0.8ml/min；检测波长为205 nm；速度为0.4mm/min。

According to the theory of coupling of solid and fluid, the influence of fault step and dip angle on the stresses and deformations of coal layer and confining rock along with the pressure of pore water are numerically simulated by finite element method during the process of excavation above a confined aquifer. The mechanism of water inrush and the potential point of water inrush are explored. The distance of coal column for preventing water inrush is also analyzed quantitatively.

根据流固耦合理论，采用有限元数值模拟的方法，针对承压水体上采煤过程中断层参数对煤层、围岩的应力、变形和水压力变化的影响进行了模拟分析，探讨了存在断层时突水的机理和可能的突水点位置，并定量分析了防水煤柱的预留距离。

The research results indicate that (1) fault-failure-type water inrush occurs more often than floor-failure-type water inrush under the existence of normal fault;(2) the influence of fault step and dip angle on the feature and position of water inrush is not evident, and water inrush may occur at both coal layer and the floor near working face;(3) the distance of coal column for preventing water inrush should be increased with the increase of fault step and dip angle.

得出以下结论：(1)当存在正断层时，多发生断层破坏型突水，而底板破坏型突水发生的几率较小；(2)突水性质和突水发生位置受断层断距和倾角的影响不大，煤层和采煤工作面附近的底板围岩都可能成为突水涌出点；(3)随着断层断距和倾角的增加，防水煤柱的合理留设距离应随之增大。

When the stopcock is opened, water flows from the top of the warmer column into the colder column

打开活塞后，水即由较热的水柱顶端流入较冷的水柱。

The anti-current effect of truncated cone cod-end is better than that of circular and column cod-ends by analysis, and is more suitable for the operations of deep-water net cage culture than circular and column cod-ends.

通过分析认为，圆台形重力式柔性囊网有较好的抗流效果，更适合于深水网箱养殖作业。

Water samples were extracted and purified and collected by solid-phase extraction LC-18 column. Soil samples were extracted by ethyl acetate/petroleum ether (2:1, by vol) and purified by sulphonation. Wheat sample was extracted by acetonitrile/water (4:1, by vol) and purified and collected by SPE- Florisil column.

水样直接用LC-18固相萃取小柱分离、净化和富集；采用乙酸乙酯／石油醚（体积比2：1）振荡提取，磺化法净化，测定土壤中氯氟吡氧乙酸残留量；以乙腈／水（体积比4：1）为提取剂，氟罗里硅土固相萃取小柱分离、净化，测定小麦样品中氯氟吡氧乙酸的残留量。

The steam acts upon the surface of the water in the receiver, which surface only being heated by the steam, it does not condense, but the steam gravitates or presses with an elastic quality like air, and still increasing its elasticity or spring, until it counterpoises, or rather exceeds, the weight of the column of water in the force pipe, which then it will necessarily drive up that pipe; the steam then takes some time to recover its power, but it will at last discharge the water out at the top of the pipe You may see on the outside of the receiver how the water goes out, as well as if it were transparent; for, so far as the steam is contained within the vessel, it is dry without, and so hot as scarcely to endure the least touch of the hand; but so far as the water is inside the vessel, it will be cold and wet on the outside, where any water has fallen on it; which cold and moisture vanish as fast as the steam takes the place of the water in its descent.

&&蒸汽行为后，水面在接收端，而只是表面被加热水蒸汽，它不浓密，但相互依赖蒸汽或印刷机具有弹性质量一样的空气，并仍在增加其弹性，或春天，直到它网，而超过重量栏水警队管道，然后它一定会推到管；蒸汽则需要一段时间来恢复其权力，但它会在最后排放水出顶管，你可以看到外面的接收机如何当然水，以及如果它的透明度；，目前为止由于蒸汽载船，它是未经干燥，所以作为热几乎要忍受至少触摸的手；但到目前为止，由于水内的船只，将寒冷和潮湿对外面，那里没有水落下；其中寒冷和水分消失快蒸汽需地方水在其后裔。

Sample matrix are discharged by the pre-column. The mobile phases applied consisted of 0.1% HOAc (pH3.0) acetonitrile-water on extraction column with UV detection at 225nm. Then, coupled-column liquid chromatographic methods for the direct analysis of atrazine and simazine in urine was established. As a result, the system showed good chromatographic property in the on-line analysis of atrazine and simazine in urine.

使用该系统对尿中的莠去净和西玛津残留进行了分离分析，以含有0.1%乙酸的酸性水缓冲液对加标尿液中莠去净类化合物保留在预柱上，干扰分析的大分子被排阻而无保留通过，其它干扰分子保留小而通过，再切换六通阀，以乙腈和0.1%乙酸水溶液进行梯度洗脱，进而在下一级ODS分析柱上进行分离（紫外检测225nm），两种除草剂的分离分析取得了良好的定性定量结果

Gradation of sand column and sediment concentration of muddy water and water head are remarkably effective factors for the fine grain distribution in sand column.

砂柱的颗粒组成、浑水含沙量和入渗水头对滞留分布产生显著的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。