查询词典 facile

The prepared PU was an elastic solid,which could dissolved in ethanol,and it exhibited strong deep purple fluorescence at the peak of 365 nm along with a shoulder at 386 nm as a thin film. Obviously,the prepared PU also was a kind of uncommon ultraviolet-emitting polymer materials.2.A novel water-soluble rod-coil block copolymer was designed and prepared successfully via the facile isocyanic acid polycondensation method using polyfluorene as rod segment and polyethylene glycol as coil segment in the main chain for the first time.

所制备的聚氨酯是一种弹性固体，可以溶解在乙醇中，同时又显示出具有半导体性质的荧光性能——最大荧光发射峰在365 nm并且在386 nm处有一个小的侧肩峰，可见它又是一种非常难得的紫外发光聚合物材料。2、首次采用了简单的异氰酸酯反应，成功地将聚芴作为刚性链段和聚乙二醇作为柔性链段，以嵌段方式连结到聚合物分子主链上，从而形成了一种新型的具有刚性链—柔性链结构的嵌段共聚物。

In this thesis, we describe a facile and economical synthesis of-abscisic acid from keto-isophorone and 3-butyn-2-ol through ketalization, oxidization, Witting-Horner reaction, reduction with chromium sulfate and other steps in 13% total yields. Compared to the previous routes, the starting materials are more commercially available and cheaper and the synthetic process is more easily controlled in our method, but the yield of this route is still to be improved.As to isostere principle, cyclopropyl and methyl vinyl are a couple of isostere.

本论文设计并完成了一条全新的外消旋脱落酸(1)全合成路线，从廉价的工业原料氧化异佛尔酮和丁炔醇出发，经过缩酮化反应、氧化反应、Wittig-Horner反应、CrSO_4选择性还原反应以及水解等七步反应实现了脱落酸的全合成，总产率达13％，与以往路线相比，该路线所用试剂廉价、合成路线简单，但产率有待提高。

The properties of liquid crystal light value, including the response curves between input and projection beam in real, inversed, and differential state, also the relationship between the transmission of the liquid crystul and the working voltuge when different input beam lumination provided, are measured by facile method.

用简便易行的方法对液晶光阀的工作特性曲线作了测量，包括光阀在正像、反转像和微分像状态读出光强与写入光强的响应曲线，以及不同写入光照度下液晶层透过率与工作电压的关系曲线。

Re: Paroli estas FACILE, se nur...

讲世界语很容易，只要。。。

Paroli estas FACILE, se nur...

讲世界语很容易，只要。。。

Further,the in-situ reaction method promotes the densification of the supported membrane,which is proven to be a facile method for preparing protonic ceramic membranes.

研究结果表明借助原位反应制备出的质子陶瓷膜具有膜厚度小、致密度高等特点，是制备电解质薄膜的一种简便有效的方法。

The facile N-participated transannular reductive rearrangement supports the postulated biogenesis of CET, and accordingly the current synthesis might be regarded as a biomimetic synthesis.

第三章记述了我们在三尖杉碱合成的基础上，应用跨环Clemmensen还原重排关键步骤，成功地构筑了百部碱5-6-7三环核心骨架的研究。

Using trimeric surfactant C_(14-2-14-2-14) as templating agent, the low cost and facile inorganic species sodium aluminate and sodium silicate as inorganic precursors, highly ordered 2D hexagonal aluminosilicate MCM-41 with high Al content were successfully synthesized.

利用廉价易得的硅酸钠和偏铝酸钠作为无机前驱体，以低聚季铵盐表面活性剂C_(14-2-14-2-14)为模板剂合成了高铝含量，高有序性的二维六方结构介孔硅铝酸盐材料，并对材料的结构、表面性质、形貌以及酸性进行了研究。

His playing is facile and unstrained.

他的表演轻巧、无拘无束。

What we have to do is to be for ever curiously testing new opinions and courting new impressions, never acquiescing in a facile orthodoxy of Comet, or of Hegel, or of our own .

感到了人生经验的五色缤纷及倏忽无常，我们拼出全部力气进行观察和接触，哪里还有时间去为自己观察和接触到的事物制订出一套一套的理论？

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。