查询词典 water column

The simulated results show that a stable acoustic standing wave is formed in bubble column under the geometric arrangements and the transducer boundary condition employed in this study. Due to the nonlinear behavior of the resonant wave and viscosity of water, there is a temporal shift at pressure nodes.

模拟结果表明，在本研究所用的几何布置和换能器与时间相关的速度入口边界条件下，反应器中形成了一个稳定的驻波声场；由于波的非线性以及水的粘性，压力波节点呈现出轻微的时间漂移性。

The water-soluble holothurian glycosides were purified by macroporous resin and silica gel column chromatograghy, and the antifungal activities of different glycoside fractions were investigated.

先后利用大孔树脂柱层析和硅胶柱层析对水溶性海参皂苷进行了纯化，并对各种纯化组分的抗真菌活性进行了测定。

In this paper, TNT and its five metabolites were separated under the system of 5μm reversed-phase C18 ion-pair column and methanol-water by HPLC.

2，4，6一三硝基甲苯是一种最常用的炸药，它对人体的毒作用有中毒性黄疽、再生障碍性贫血及白内障等。

Hung during the Spring Hill Park entrance plaza will also be several species of the water lily pond, put flourish of flowers, arranged on the balloon, column, etc., creating a joyful festive atmosphere.

洪在春季山公园入口广场也将若干种睡莲池塘，把蓬勃发展的鲜花，气球上的安排，柱等，创造一个欢乐的节日气氛。

Hung during the Spring Hill Park entrance plaza will also be several species of the water lily pond, put flourish of flowers, arranged on the balloon, gas column and so on, creating a joyful festive atmosphere.

挂在春山公园入口广场也将若干种睡莲池塘，把蓬勃发展的花卉，安排的气球，气柱等，创造一个欢乐节日气氛。

At the top of the column, there are two water nozzles for washdown and quenching.

在管道的顶部，有两个用来清洗或灭火的水喷嘴。

The effects of the content of acetic acid and water in mobile phase on the separation were systematically investigated. The fast enantioseparation of the racemate on monolithic column was successfully realized by stepwise gradient elution.

考察了流动相中添加不同量的醋酸和水对分离的影响，结合台阶梯度洗脱模式在S-TB整体柱上实现了对TB消旋体的快速分离。

For determination the content of isomaltooligosaccharide in beverage, a high performance liquid chromatography method was established by using 300 mm×4 6 mm, 5 μm Hypersil NH 2 column, acetonitrile+water=78+22 as mobile phase, detector was diffeential refractometer with 40℃ internal temprature.

为测定饮料中异麦芽低聚糖的含量，建立了使用 30 0mm× 4 6mm ，5 μmHypersil NH2 柱，乙腈+水=78+ 2 2为流动相，内部温度为 4 0℃的示差检测器的高效液相色谱法。

The charomatographic conditions of separation and direct dermination of benzophenone-4(MS40), salizyle acid sodium, salol, benzophenone-3(M40), octyl dimethyl PABA(6007), butyl methoxy dibenzoyl methane(1789), octyl methoxyl cinnamate and octyl salicylate(587) from u-Bondapak C18 Column were studied with methanol-water-THF as elution. A HPLC method for these compounds was founded.

研究了用甲醇-四氢呋喃-水作为流动相，从C18柱上分离和测定羟苯甲酮-5-磺酸(MS40)、水杨酸钠、水杨酸苯酯、羟苯甲酮(M40)、对-二甲酸氨基苯甲酸-2-乙基己酯(6007)、4-叔丁基-4-甲氧基二苯甲酸甲烷(1789)、对-甲氧基肉桂酸-2-乙基己酯、水氧酸-2-乙基己酯(587)等8种紫外线吸收剂的色谱条件，建立了用HPLC测定上述物质的方法。

Secondly,the synthesis of SIPE and the reaction conditions such as catalyst,anti-ether agent,temperature and water are researched to control the generation of diethylene glycol and the self-polymerization of SIPM by controlling the total quantum of distillate and the temperature of distillation column and reaction and the reliable synthetic conditions of SIPE are obtained.

其次，在此基础上，研究了三单体的中间体SIPE的合成工艺，研究了催化剂、抑醚剂、反应温度及水分等对合成反应的影响，同时提出了控制馏出物总量、控制分馏柱温度和控制反应温度等措施来控制二甘醇生成反应和SIPM自聚等副反应，得到了可靠的SIPE合成工艺。

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。