查询词典 sieve classification

Compared with the pure AlPO 4-5 molecular sieve, the unit cell volume of Cr-AlPO 4-5 expanded and its skeleton vibration peaks in FT-IR spectra shifted to low wavenumbers.

但是 ，由于苯环上共轭大π键所产生的化学稳定性，使得苯在温和条件下难于发生反应；因此，必须选择高活性的催化剂。

Inaddition,we extract total RNA from cultural U251 cell of humanglioma,make coding gene extron amplification of TfR through ReverseTranscription-Polymerase Chain Reaction,construct expressionplasmid of pCDNA3.1-TfR after digestion of enzyme andconjunction,do transfection to U251 cell by liposome afteridentification,cause excess expression,detect the efficiency of transientexpression of TfR protein by pEGFPN1-TfR, sieve positive cell ofpCDNA3.1-TfR through G418, choose positive cell clone, detect theexpression of TfR in anteroposterior period through Western blot,FCM,cell immunochemistry and mRNA through RT-PCR, identify the effect of transfection.

另外，培养人脑胶质瘤U251细胞，进行细胞总RNA抽提，运用RT-PCR方法进行TfR基因的完整编码区外显子的扩增，经过酶切、连接后构建pCDNA3.1-TfR的表达质粒，鉴定正确后按脂质体转染方法转染人胶质瘤U251细胞，使其过量表达，通过pEGFPN1-TfR检测其瞬时转染的效率；用G418对稳定表达pCDNA3.1-TfR的细胞进行筛选，挑选阳性细胞克隆，运用Western blot、流式细胞检测技术和细胞免疫化学以及mRNA半定量的方法检测TfR在转染前后的表达水平，鉴定转染的效果。

Design and Analyze of Amplitude Photon Sieve Based on Angular Spectrum Method .

基于角谱法的振幅型光子筛的设计和分析。

Moreover, a birthday sieve method is introduced to decrease the complexity of the precomputation.

而且，引入一种新的生日筛法以降低预计算的时间复杂度。

Stemming from the water sieve analysis method, a test method of CPA was proposed.

由水筛法得到启示，提出了一套水泥净浆结粒的检测方法。

Objective: To study the Cefoxitin disk diffusion method sieve Methicillin-resistant Staphylococcus aureus method.

目的：研究头孢西丁纸片法筛选耐甲氧西林金黄色葡萄球菌的方法。

Stemming from the washing sieve, a test method of cement paste agglomeration was proposed.

由水筛法得到启示，提出了一套水泥净浆结粒的检测方法。

The X-type molecule sieve membrane prepared in the method is thin and has good continuity and few defects.

该方法制备的X型分子筛膜薄且连续性好，缺陷少。

The effects of different level bentonite on the content of soil water and soil organic matter in the field are studied with the sandy sieve tube method.

通过田间条件下砂滤管试验，研究了不同膨润土施用量及有机物料对砂土土壤含水量和有机质含量的影响。

The present invention discloses a silver-carrying macroporous zeolite molecular sieve adsorbent, its preparation method and application.

本发明公开了一种载银大孔沸石分子筛吸附剂及其制备方法和应用。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。