筛选

It mainly deals with: 1 the adoption of PW-30 and PWC drag reduction materials through screening, which were found to be of better kinds with large percentage of drag reduction in low concentration and fine solubility; 2 fundamental data and basic formulae of drag reduction; 3 predictional method of drag reduction in internal flow e.

包括以下几个主要部分：筛选了减阻剂，所得到的PW-30及PWC具有在低浓度下高减阻百分数及速溶等性能，系两种优良的减阻剂。讨论了基础数据及消防减阻予报公式的整理和减阻予估方法。提出了系统匹配与优化减阻问题。

Gradual regression analysis through specific mathematical algorithms to achieve automatic data selection and remove useless or even wrong data; The test data analysis revealed: the furfuran content have a very good correlation with polymerization degree of insulation paper, and a correlation model between furfuran content and DP was founded by regression analysis.

逐步回归分析通过偏回归平方和及显著性分析，实现对试验数据的自动分析、筛选，排除无用甚至是错误的数据；本文试验数据逐步分析结果表明：油中糠醛含量对数值与绝缘聚合度相关性最好，与现场实际分析结果一致；通过回归分析建立了绝缘聚合度与糠醛含量对数值的关系模型。

Thecertification of the DNA markers related to resistance to fusarium wilt wasalso discussed.

此外，对与西瓜枯萎病抗性有关的片段和与感病性有关的片段的问题和抗病标记的验证和筛选问题也进行了讨论。

Through Disc diffusion method,we finally selected 8 strains against Banana Fusarium wilt disease No.4 race.

通过纸片扩散法，从这139株拮抗放线菌菌株中，最终筛选对香蕉枯萎病生理小种4号具有拮抗作用的8个菌株。

The Fusarium oxysporum screening model was established and verified.

建立了镰刀菌筛选模型并进行了验证。

To further understand mechanisms that control male gametogenesis and embryo development,we performed an genetic screen for mutations that caused distorted Mendelian segregation in Ac/Ds transposon system in Arabidopsis thaliana.

通过卡那霉素抗性(由突变体中标记基因编码)非孟德尔分离，从Ds插入的拟南芥突变体库中筛选到一个雄配子体发育突变体：ovp1和一个早期胚胎发生突变体eed1，我们对这两个突变体的表型和相关基因进行了研究。

Garonne farms with 300,000 acres of arable land is a state-run farms, agricultural machinery and equipment advanced screening of food along with China's cause of the vigorous development of all staff through the company The hard work and innovation, the company continued to expand business, industrial investment has begun to take shape, from a simple trading company for the development of production, supply, sell one-stop service integration, the Group of economic entities.

引龙河农场是具有300000亩耕地的国营农场，各种农业机械和粮食筛选设备先进）伴随着我国外贸事业的蓬勃发展，通过公司全体员工的拼搏和创新，公司业务经营不断扩大，实业投资已初具规模，已从单纯的贸易公司逐步发展为产、供、销一条龙服务的综合化、集团化的经济实体。

After developing and weeding through the old to create the new items for a long time, we have the confidence that no matter the bar's or kitchen's products will be passed through any trial of the gastronome and will satisfy your appetite.

经过长期的推陈出新与筛选，我们自信，不管是吧台或厨房的产品，完全经得起考验，全部也都是上上之选，绝对足以满足您的味蕾。

The ORF2 gene is the most important protein-code gene for porcine circovirus, and is the main gene differing porcine circovirus typel from porcine circovirus type2 (PCV2). To construct a specific PCR detecting method, we designed a pair of primers to amplify a partial fragment of ORF2 gene from PCV2, referring to fifteen strains complete genome published in Genbank. The PCR product was about 0.67kb in size detected by gelose gel electrophoresis.

猪圆环病毒的开放阅读框2(ORF2)是其主要结构蛋白的编码基因，也是区分猪圆环病毒1型(PCV1)和猪圆环病毒2型(PCV2)的重要基因，本研究参照GenBank已发表的15株PCV2基因序列，设计合成一对引物，对PCV2的ORF2基因进行PCR扩增，产物经琼脂糖凝胶电泳，呈现一条大小约0.67kb的特异条带，经条件筛选，建立了猪病料中PCV2感染的PCR检测方法。

In order to select safe and effective herbicides, experiment was carried out to test some herbicides effect on large crabgrass and barnyardgrass at the stage of turfgrass gemination and establishment.

刘荣堂 ，韩烈保，韩烈刚为筛选出安全有效的除草剂，分播后萌前和成坪时期，在室内和田间试验条件下研究了几种除草剂对马唐和稗草的防效。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。