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The electron-rich and sterically hindered ligand 9d provides the best enantioselectivities (up to 97.8 % ee) for various chalcones as the substrates.

其中富电子且空间位阻较大的配体gd对查耳酮类底物表现了最好的手性诱导能力，加成产物的ee值达到94.7一97.8%。

More studies need to carry out for addressing the surface process on stretchable substrates.

如何利用软弹性材料高弹性的特点，实现其对表面自组装过程的调控，还有待进一步的探索。

Several substrates of Lon protease have been known in Escherichia coli－including SulA and RcsA. However, the precise position of substrate-recognizing site in Lon protease is still not clear yet.

在大肠杆菌中，有已知 Lon 的主要的基质为－ SulA、RcsA，而Lon 蛋白酶本身辨识基质的确切位置却仍不甚了解。

Experimental results indicated that the structure and properties of theTiN films on different substrates were almost the same when the same depositionparameters were used.

试验表明：在不同基材上沉积的TiN膜，只要沉积参数相同，膜的结构和性能都相同。

Baker's, brewer's, and Torula yeast strains serve as common substrates but in general, brewer's yeast require a pretreatment prior to use.

面包、啤酒、圆酵母可以作为原料生产酵母抽提物，但啤酒酵母抽提物要预处理后再使用。

The II blank film density (transmissional and the density of dust density substrates) should be not less than 0.15

空缺胶片的透射密量答不不小于0.15

Undoped and indium-doped zinc oxide films are deposited on Si substrates by radio frequency reactive sputtering technology.

采用射频反应溅射技术在硅(100)衬底上制备了未掺杂和掺In的ZnO薄膜。

Using the molecular field approximation, liquid crystal film s on the unrubbed substrates are studied by Lebwohl-Lasher model.

采用分子场近似。通过Lebwohl—Lasher模型研究无摩擦基板上的液晶薄层。

The electrode-free energy feeding is the key factor for processing substrates in their original, unslotted magazines.

对于处理在最初和未开槽的底层，自由电极能量的输送是关键的因素。

We first found out the preparation of intact budding yeast nuclei suitable for substrates for replication in Xenopus egg extracts.

我们首先摸索出了一个制备适用于爪蟾卵复制底物的完整芽殖酵母细胞核的方法。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。