查询词典 sieve analysis

Absorption with molecular sieve as the traditional method of dehydration ofpropylene has many disadvantages such as complex equipment, high energyconsumption, pollution environment.

传统的丙烯脱水技术是分子筛吸附法，存在着设备复杂、能耗高、污染环境等弊病。

Absorption with molecular sieve as the traditional method of dehydration of propylene has many disadvantages such as complex equipment, high energy consumption, pollution environment.

传统的丙烯脱水技术是分子筛吸附法，存在着设备复杂、能耗高、污染环境等弊病。

ObjectiveTo sieve the best purification method of Herba Leonuri's acidic alcohol- extract by comparing the purification efficiency of different methods.

目的通过对不同精制方法的比较，筛选出益母草酸醇提取液的最佳精制方法。

The results show that the gradation designed by five control sieve design method is very close to the gradations designed by Bailey method and CAVF method separately, and it is between them basically.

结果表明：采用五控制点级配设计方法设计的级配与贝雷法、CAVF法的设计级配非常接近，并且总体上位于贝雷法设计级配和CAVF法设计级配之间。

To probe the value in using Cellular Computed Tomography to analyse cervical smears and regard as the primary sieve method to diagnose cervical lesion.

探讨计算机辅助细胞检测系统在检测子宫颈涂片中的价值和作为诊断子宫颈病变的初筛手段。

It is showed that the properties of CMK-3 mesoporous carbon molecular sieve synthesized by hard template method have great influence on Ru dispersion. Higher specific surface area and appropriate pore size distribution is advantageous for sufficient dispersion of Ru on the supports.

采用固相热分解方法成功的合成了介孔氧化铬材料，考察了反应的温度、反应时间、前驱体和表面活性剂配比以及表面活性剂的种类等制备条件对纳米介孔氧化铬材料结构性能的影响。

Then the recombinant plasmid transformed E.coli.JM109. One positive clone was obtained from the libraries with casein flat and ELISA sieve method.

用酪蛋白平板法和酶联免疫吸附的活性筛选方法从基因文库中筛选到一株产海洋低温碱性酶的阳性克隆（命名为pHH1）。

A new generating circuit on five-level M-sequence based on the cut-join sieve method,which can generate 2048 different five-level M-sequence s.

敌我识别系统的核心技术之一是询问信号与应答信号的加密传输，针对信号传输中对密码的要求，文中引入了伪随机码，基于剪接筛法设计了能产生2048个两两相异的5级 M序列的电路，并对该电路进行了仿真，仿真结果验证了该设计的正确有效性

The invention relates to an intergrowth molecular sieve and a synthetic method thereof, which mainly solves the problems of singular apertures, rather weak acidity and low activity of porous materials of the prior art.

本发明涉及一种共生分子筛及其合成方法，主要在于解决现有技术合成的多孔材料孔径单一、酸性较弱、活性不高的问题。

DR is had without achieve, the characteristic with quick, low radiation, safe, tall accuracy, can regard pneumothorax patient as first selection and valuable sieve investigates a method.

DR具有无创、快捷、低辐射、平安、准确性高的特征，可作为气胸患者首选而有价值的筛查方法。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。