查询词典 selectivity

Then in this disquisition by experiment of selectivity of pure Galenite and sphalerite, the rule is asscertained that the mine slurry pH and different adjust medicament and catch medicament and restrain medicament kinds and dosage affect flotation .

然后本研究通过对纯的方铅矿和闪锌矿物可选性的试验研究，确定了矿浆PH值、不同调整剂、抑制剂、捕收剂及活化剂的种类、混合配比和用量对浮选分离铅锌银矿石的影响规律，提出的适宜pH值范围、药剂种类及用量为实际矿石的铅锌分选和强化伴生银的回收奠定了良好的基础。

From the view of hydrogen selectivity, ZnCl2 ranks first, K2CO3 second and Raney-Ni third. However, Raney-Ni is most favorable to gasify biomass, its gasification efficiency reaches 126.84%, and it can earn 34.37g hydrogen by gasifying 1kg biomass.

结果表明，ZnCl2对氢气的选择性最高，K2CO3次之，Raney-Ni最低，但在低温条件下Raney-Ni最有利于生物质的气化，气化率高达126.84%，氢气产率高达34.37gkg^(-1)。

The method of determining trace germanium is efficient and of good selectivity, and its analysed results are satisfactory.

该方法灵敏度高，选择性好，用于惹米中痕量锗的侧定，效果良好。

Selectivity modification of glycoside by glycosidase is one of the most fascinating topics.

利用糖苷酶对糖基化合物的糖基定向改造工程是目前一个研究的热点。

Second, among the seven yeast strains investigated, Rhodotorula gracilis AS 2.499 exhibited the highest activity and stereo-selectivity to tert-butyl-6-chloro-5-hydroxy-3-oxohexanoate.

其次，从实验室保藏的七株酵母菌株中筛选出对-6-氯-5-羟基-3-羰基己酸叔丁酯具有较高还原能力的菌株——Rhodotorula gracilis AS 2.499。

The results show that MCM-41 with Si ∶KG-*3〗Al=100 exhibits a good catalytic activity and selectivity to guaiacol. This may mainly be attributed to the relative large pore size and the presence of suitable amounts of weak acid on the surface of catalyst.

结果表明， Si∶Al=100的MCM-41材料表现出较好的催化性能，样品较大的孔径和一定量弱酸中心的存在对反应有利。

The proposed method can be used to estimate the guanine and adenine contents in DNA with good selectivity in a linear range of 0.25 μg 〓～5. 0μg〓.

该方法可以用来测定DNA中鸟嘌呤和腺嘌呤的含量，具有很好的选择性。

Although no cells with high selectivity to proteins had been discovered in the gustation organ of insects till now in the literature, however, bovine serum albumin was found can lead to strong spikes on this sensor, which are different from that caused by any other stimulants that had been tested.

研究发现牛血清白蛋白能够引发不同于其他刺激物的脉冲，但还不能确定这种脉冲信号是否是一种对蛋白质特殊敏感的受体细胞所引发的。

Keywords: Higher halophyte; K / Na selectivity in the plasma membrane; physiological and molecular mechanism

中文关键词：高等盐生植物；质膜 K /Na 选择性；生理和分子机制

One system found on the basis of HPLC system, which was suit for high temperature. The temperature selectivity was studied through analyzing benzene homologue and aromatic hydrocarbons.

本文在液相色谱基础上构建了一套适合高温分析的色谱系统，并通过对苯同系物及芳香烃的分离，考察了温度对色谱分离选择性的影响。

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％。