筛选

The method is sensitive and suitable for the determination of trace chloramphenicol in aquatic p...

结果表明该方法灵敏度高，重复性好，适合水产品中氯霉素残留筛选检测

Furthermore, we also isolated some new bacterium from the samples of pollution point to remove chlordane.

同时从实际污染点样品中筛选出四种有效的降解菌(M-15、M-16、S-2、S-6)，研究它们对氯丹的降解能力。

The results provide important data in developing selectable markers in genetic engineering of Chlorella sp.

为筛选出小球藻基因工程藻株的选择试剂，建立其遗传转化系统奠定了基础。

The results show that the synthetic compounds conform to the target compounds and the primary bioassay for anti-vibrio activity displays that the pyrrole alkaloids have a weak inhibition against Vibrio parahaemolyticus and Vibrio alginolyticus compared with the positive control of chloromycetin.

结果表明，所合成的化合物与目标化合物结构相一致。初步的抗溶藻弧菌和副溶血弧菌活性筛选表明，合成的吡咯生物碱具有一定的抗弧菌活性，但相对于阳性对照药氯霉素来说，合成的绝大部分吡咯生物碱抗弧菌活性较弱。

And then, the recombinant plasmid was introduced into the component cell E.coli JM109, which transformed by CaCl2 method, and the transformant was selected on M-H agar plate supplemented with 50μg/ml of chloromycetin and 60μg/ml of ampicillin.

将新酶全编码基因克隆入表达载体pHSG398，转化于感受态细胞大肠埃希菌JM109中，用加有抗菌药物的琼脂平板进行转化株筛选。

Widely used in all kinds of rough picking of pulp ,choiceness and paper machine screen ,belongs to drain screen .

广泛适用于各种纸浆的粗选、精选及纸机前浆料的筛选，属于外流筛。

The theory gist and indication of the choiceness cultivar were put forward according to the demand for medicinal material application and resources renewal.

并结合中医用药的要求，提出了可供资源再生的优良种质筛选的理论依据和指标。

The optimized preparation conditions are:total polymer amount is 25 mg; 2-IT: Lf when thiolation is 40: 1; and the outer waterphase is 1% sodium cholate solution.

以粒径为指标，最终筛选的优化制备条件为：聚合物总量25mg，巯基化试剂2-IT∶Lf摩尔比为40∶1；外水相为1％的胆酸钠溶液。

Objective To analyze the data of gene expression profiles of choriocarcinoma and screen for choriocarcinomarelated genes.

目的比较和挖掘葡萄胎、绒毛膜癌基因表达谱数据，筛选与绒毛膜癌恶性演进相关的新基因。

The electrochemical impedance spectroscopy features and the resistance to corrosion of an epoxy coating containing the pigment of zinc chrome yellow have been studied with the aid of EIS and Fourier transform infrared spectroscopy analysis.

运用电化学阻抗谱和Fourier变换红外光谱研究了经过不同老化温度和老化时间处理的含锌铬黄防锈颜料的环氧酯漆在3.5％NaCl溶液中的阻抗谱特征，根据Fourier变换红外光谱和电化学阻抗谱中第二个时间常数出现的快慢及高频收缩情况来判断涂层的耐蚀性能，进而筛选老化工艺。

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％。