筛选

The scales of "Sorbonne","Mera star","Siberia","Tiber" were used to study systematically soilless cutting skills of Oriental lily from pretreatment of scales, cutting medium to nutrition solution. The results indicated:① using broken dormancy bulbs which experienced disinfection and exposing could prevent it from rot and enhance propagation index;② There is no difference among four varieties on information of bulblet, so all four varieties can be propagated bulbs though cutting.

本试验以东方百合索蚌、残星、西伯利亚、泰伯四个品种的鳞片为材料，分别从鳞片的预处理、扦插或催芽基质的筛选、20—22℃室温下催芽、营养液选配等几方面对东方百合无土扦插的技术措施作以系统研究，结果表明：①用打破休眠的种球，并通过破球、消毒、晾晒处理，有效的防止了扦插过程中鳞片的腐烂，提高了繁殖系数；②东方百合鳞片也有扦插分生小子球的潜能，四个品种之间分生子球的差异不显著，因此它们都可以用扦插方法繁殖种球。

The Plackett\|Burman experimental design was used to determine the main influencing factors which are phase ratio, extraction time and extraction temperature. Using these three factors as variables, the extraction operation conditions were optimized by Response Surface Methodology.

同时，通过Plackett-Burman实验设计筛选出相比、萃取时间和萃取温度为主要影响因素，并应用响应面方法分析得到了这3个因素的优化结果。

We isolate the putative NO-sensitive bushiness mutant and characterize the mutant nob by T-DNA inserted mutation and root inhibition effect of the NO donor , sodium-nitroprussiate , in Arabidopsis thaliana.

本实验以拟南芥为材料，利用T-DNA插入诱变和NO胁迫选择的方法，筛选到一种对NO敏感且叶片丛生的突变体nob。

The leaves,pedicel axillary bud,pedicel linternode,stem tip and root tip of butterfly orchid were used as explants,and the best explant and culture medium were screened by testing different culture medium with hormone combination.

以蝴蝶兰的叶片、花梗腋芽、花梗节间、茎尖、根尖为外植体，通过对蝴蝶兰组织培养的不同类型的基本培养基及各种激素配比进行组合试验，筛选出蝴蝶兰组织培养的最适外植体及其培养基配方。

Objective: To investigate the influence of sodium butyrate to the growth of ovarian epithelial cancer and detect the probable mechanism.

目前，诱导肿瘤细胞凋亡已成为抗癌药物和抗癌疗法新的筛选标准，开发低毒并诱导肿瘤细胞凋亡的新药，成为科学家们普遍关注的热点。

This test generates a high- yielding GAD strain by mutagenizing and screening the escherichia colis. It is on the basis of this test to study on the optimal conditions of translation in this strain.

本试验以普通大肠杆菌经过诱变筛选得到一株高产谷氨酸脱羧酶菌株以此为基础，研究该菌株最佳转化条件。

Separation of the sub-quality part of the ore and the barren rock is exercised by the fractionated screening of each size of the ore by application of the lump size X-ray spectral separation and the small-portion X-ray spectral classification with the following purifying operations of the tail products of the main processes for each of the fraction, which are similar to the main processes.

在应用大规模的X射线光谱分离和小部分X射线光谱分类分级筛选不同大小的矿石的基础上，对次级矿石和贫矿石进行净化处理。然后，对各部分主要过程的尾矿进行净化处理，各个小部分的处理方式都类似于主要部分的处理方式。

Assessment of calcaneum bone quality and quantity using quantitative ultrasound can be an effective method in screening and preventing of osteoporosis in aged cohort.

近年来发展起来的定量超声法(Quantitative ultrasound，QUS)利用超声对物质密度、结构及材料的特征表现来评价骨的质量，已被证实与双能X线骨密度测定(Dual一cnergy X一ray absorptiometry，DXA)具有良好的相关性，因而成为一种适宜于在大规模人群中筛选骨质疏松高危患者的经济、方便的检测方式l，幻。

Taking light calcium carbonate as an example,in order to make its manufacturers understand the measures——how to enhance the product′s whiteness from theories to practice,this paper fully expatiated on various effecting factors of chemical whitening ,process of chemical whitening ,establishmen.

以轻质碳酸钙为例，为了使生产企业从理论到实践对提高白度的途径有所了解，对化学增白的影响因素、化学增白程序、制定化学增白方案的原则、实验室试验筛选最优方案、工业试验的方法进行了全面阐述，并提出几点行之有效的注意事项，以保证化学增白达到预期效果。

By screening media fresh calfskin decomposition and activity detection one strain was screened with collagenase activity about 35.97U/mL.

经活性平板初筛牛皮消化实验和活性测定筛选得到一株胶原蛋白酶活性为35.97U/mL的菌株。

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％。