选择性的

ABSTRACT Partially purified chlorophyll was used to prepare pheophorbide by chlorophyllase hydrolysis and selective acidic hydrolysis methods.

以初步纯化的叶绿素为原料，利用叶绿素酶水解、选择性酸降解两种方法制备脱镁叶绿酸。

Freedom is found in the choiceless awareness of our daily existence and activity.

自由存在于无选择性地觉知我们每日的存在和行为。

In observation one begins to discover the lack of freedom.Freedom is found in the choiceless awareness of our daily existence and activity.

在观察中，人开始发现缺乏自由，自由在我们日常存在和活动的无选择性觉悟中被发现。

Meanwhile, the promotion effect of ultrasonication on the catalytic performance was also discussed based on the selective hydrogenation of cinnamaldehyde to cinnamyl alcohol.

同时，还讨论了超声对肉桂醛选择性加氢制肉桂醇催化性能的促进作用。

During liquid phase hydrogenation of cinnamaldehyde at atmospheric pressure, the Ru-B catalyst prepared exhibited excellent selectivity to cinnamyl alcohol.

Ru-B催化剂在肉桂醇液相常压加氢中显示出较高的肉桂醇选择性。

When the hydrogenation was performed with ultrasonic irradiation, the reaction rate could be greatly enhanced while the selectivity to cinnamyl alcohol remained almost unchanged.

在加氢过程中使用超声辐射能大大提高反应速率而肉桂醇的选择性几乎保持不变。

The coadministration of the highly selective 2-adrenoceptor antagonist (n = 6) RS 79948 20 mM prevented the Dex-induced decrease in accumbal DA.

伍用高选择性2-肾上腺素能受体拮抗剂(n = 6)RS 79948 20 mM 可防止 Dex 诱导所致的 accumbal DA 减少。

The method has high sensitivity and reproducibility, and has been applied to determination of Crin water with satisfactory result.

方法简便易行，灵敏度高，重现性好，选择性强，可用于环境水样中痕量铬的测定。

The addition of small amounts of H2O and NaOH to the reaction system improved the catalytic activity but decreased the selectivity of crotyl alchol.

结果表明，反应体系中水和氢氧化钠的引入，可提高催化活性，但降低了选择性。

The results reveal that the supported catalyst has high catalytic activity and good selectivity of epoxide for the epoxidation of cyclohexene and styrene, respectively.

上述结果表明该负载催化剂对环己烯和苯乙烯的空气环氧化具有很高活性和环氧化物选择性。

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％。