查询词典 counter current

Because of their existence and growth, the time will come when the reactionary anti-Soviet, anti-Communist and anti-democratic counter-current still in existence today will be swept away.

由于这些矛盾的存在和发展，所以虽有反苏反共反民主的逆流存在，但是这种反动逆流总有一天会要被克服下去。

The theoretical results of cross current and counter flow were obtained by simulation calculation.

选择 1，1，1 三氯乙烷为糠醛和水萃取分离的溶剂，建立错流和逆流模拟计算框图，采用试差法模拟错、逆流分离结果。

The characteristics of pressure drop of wire packing rotating packed bed absorber in air independent propulsion system are analyzed under counter-current condition and the model of pressure drop is built.

对不依赖空气动力装置系统不锈钢波纹丝网填料旋转床吸收器在气液两相逆流条件下的气相压力降特性进行了分析，建立了压力降预报理论模型。

The disc type counter current chromatographic separation column comprises at least a or a plurality of discs provided with designing slots, clapboards at two sides of each disc, the cylinder rotating axis, an upper flange and a lower flange; the cylinder rotating axis is hollow and passes through the center of the upper flange, the lower flange, the discs and the clapboards; the inner edge and the outer edge of the upper flange, the lower flange, the discs and the clapboards are provided with a plurality of bolt pieces that fix the upper flange, the lower flange, the discs and the clapboards together.

一种多功能高效逆流色谱仪，它由盘式逆流色谱分离柱、配重体、行星架、柱体自转轴、行星轮、中心轮、中心公转轴、电机、传动装置、速度控制装置和保温机箱组成；所述的盘式逆流色谱分离柱，它包括有至少一个或多个设槽的圆盘、每个圆盘两侧的隔板、柱体自转轴和上法兰、下法兰；所述的柱体自转轴为空心，贯穿在上法兰、下法兰、圆盘及隔板的中心；在上法兰、下法兰、圆盘及隔板的内外边缘设有多个螺栓部件，将上、下法兰、圆盘及隔板固定在一起。

To counter the problems of short circuiting or unreliable protection for current leaking on the 660V Power Distribution Cabinet, the problem is solved with some carrier frequency devices, which makes the 20kHz carrier frequency signal indicator lit at all times, no matter the power switch is in either ON or OFF position.

针对660V的配电柜存在短路时产生弧光及放炮现象，以及漏电保护不可靠的问题，通过采用载频保护后，不论配电开关柜电缆是否送电，配电柜上始终有20kHz载频信号。

Digital Language nuclear phase meter, intelligent dielectric loss test, instrument megger, frequency series resonance test device, grounding resistance tester, transformer load switch tester, the nuclear-phase high-pressure device, vacuum oil filter, clamp grounding resistance instrument, stray current detector, transformer features an integrated tester, cable fault tester, DC resistance tester, digital relay protection tester, automatic transformation ratio tester, relay protection tester, vacuum tester, Loop resistance tester, wireless high-pressure phase of nuclear device, active transformer capacity tester, insulation oil dielectric strength tester, high voltage switch mechanical properties tester, intelligent switching characteristics tester, light-up-flow devices, wireless instrument of nuclear phase, oxidation Zinc arrester tester, high voltage test transformer, DC high-voltage generator, lightning counter checkers, inductive load DC resistance tester, dielectric strength of insulating oil automatic tester, relay protection test chamber, multi-function test bed, IF DC - Generators

数显语言核相仪，智能化介质损耗测试，仪兆欧表，变频串联谐振试验装置，接地电阻测试仪，变压器有载开关测试仪，高压核相仪，真空滤油机，钳形接地电阻仪，杂散电流测定仪，互感器特性综合测试仪，电缆故障测试仪，直流电阻测试仪，微机继电保护测试仪，全自动变比测试仪，继电保护测试仪，真空度测试仪，回路电阻测试仪，高压无线核相仪，有源变压器容量测试仪，绝缘油介电强度测定仪，高压开关机械特性测试仪，智能开关特性测试仪，轻型升流器，无线核相仪，氧化锌避雷器测试仪，高压试验变压器，直流高压发生器，雷击计数器校验器，感性负载直流电阻测试仪，绝缘油介电强度全自动测试仪，继电保护试验箱，多功能测试台，中频直流发生器

Optimization design for three-effect counter-current falling-film evaporation process of Bert rams and the problems should pay attention to in daily operation were introduced.

介绍了对Bertrams公司三效逆流降膜蒸发生产工艺在操作方面的优化及日常运行需要注意的问题。

The applications of chromatographic techniques in the fingerprint study of Chinese traditional medicine, such as gas chromatography, high performance liquid chromatography, supercritical fluid chromatography and high speed counter current chromatography are reviewed.

介绍了气相色谱、高效液相色谱、超临界流体色谱和高速逆流色谱等几种色谱技术在中药指纹图谱研究中的应用现状，以及使用模糊聚类分析和人工神经网络分析指纹图谱对中药进行模式识别和质量鉴定的方法。

The results showed: when TLC solvent system was: chloroform - methanol - diethyl amine = 90:9:1, alkaloids from lotus leaves were well isolated, and five components were isolated and identified by spraying Dragendorff reagent. The optimal conditions of HPLC solvent system were: methanol- water - diethyl amine = 75:25:0.0125. Under the conditions, components of alkaloids from lotus leaves were separated very well, and ideal RP-HPLC peaks were obtained.5、Methods of High Speed Counter Current Chromatography and preparative High Performance Liquid Chromatography applied to identify and purify alkaloids from lotus leaves were set up. When solvent system of HSCCC was: chloroform - methanol - water (pH=4.00)= 4:3:2, speed of chromatogram was 700rpm, flow speed of the mobile phase was 2mL/min, four pure components relatively were attained by isolation and purification.

结果表明：薄层层析溶剂系统为氯仿：甲醇：二乙胺=90：9：1，使荷叶中的生物碱达到了较好的分离效果，并用改良的碘化铋钾试剂喷雾显色，共分离鉴别出了5种荷叶生物碱；分析型HPLC分析检测的较优溶剂系统为甲醇：水：二乙胺=75：25：0.0125，使荷叶生物碱的各个组分达到了基线分离，并获得了较好的峰形。5、建立了高速逆流色谱和制备型HPLC技术分离纯化荷叶生物碱的具体方法。H(来源：ABC46论文网www.abclunwen.com)SCCC法在溶剂系统为氯仿：甲醇：pH4.00的水=4：3：2，色谱仪转速为700rpm，流动相流速为2mL／min的条件下，分离纯化得到了4个纯度较高的化合物。

The frequency of the current ripple in the DC motor caused by its counter-EMF is analyzed.

0引言电动机的电枢是一个特殊的旋转体，旋转时有些电气参数会随转速而变。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。