查询词典 gem peg

The bromo-polyethylenegylcol-monomethacrylate was synthesized by two steps. Firstly, methylacrylic acid was esterified with polyethylene glycol (PEG, M=200, 400) to give polyethyleneglycol-monomethacrylate Secondly, treatment of PEG-MA with phosphorus tribromide gave the aim product.

以聚乙二醉（M分别为200，400）和甲基丙烯酸进行单酯化反应，所得单酯再与三溴化磷进行溴化反应合成了一种新的两端具有功能团的不饱和溴化物，即溴代甲基丙烯酸单聚乙二醇酯。

The experimental results show that the immobilization of PEG on microspheres GMA/MMA can be conducted favorably,and this is a shortcut route to prepare triphase catalysts of PEG.

实验结果表明，以交联微球GMA/MMA为载体，可以顺利地实现PEG的固载化，这是制备PEG三相相转移催化剂的简捷途径。

The macromer cationically copolymerized with tetrahydrofuran to give a copolyether grafted with PEG chain. Using copolyether with about 1.3grafts per molecule, the S-PEU with PEG grafted onto soft segments was synthesized.

以四氢呋喃与少量大分子单体进行正离子开环共聚合制得每个链接有约1.3个PEG枝的聚丁二醇，用以合成了在软链段上接有PEG枝的聚醚氨酯。

IF your own peg is in your STARTspace when you pop a 6,you cannot bring a new peg out.

如果是自己的棋子在& START &位，你按出6时，也不能出新棋。

When you pop a 6 you can either move a new peg out to START,or move a peg already in the playing track.

当你按出6时，你可以移动一个新棋子出&开始&位，或者移动一个已经在游戏轨道上的棋。

The builders have peg ged out the land for the hour, Have you peg ged out your claim yet?

建筑工人已经用木桩标出了建造这座房子的地域界限，你提出你的要求了吗？

The Pd2-H2O-PEG system are impressive activating for a wide range of substrates.Therefore, palladium catalyzed reactions with PEG has been carried out.

而醋酸钯-水-聚乙二醇催化系统可广泛的活化反应物是颇让人印象深刻的，因此聚乙二醇可有效地促使钯的催化进行反应。

The results show that the reaction can be completed in shorter time and lower temperature while PEG is used as the phase transfer catalyst. The dropping point of product can reach about 165℃, this proves that the method of using PEG as phase transfer catalyst to produce rice bran wax calcium soap is effective.

试验结果表明采用PEG相转移催化制糠蜡钙皂可使反应在较短的时间和较低的温度下进行完全，并可使产品的主要指标滴点达到165℃左右，证明PEG相转移催化法是制糠蜡钙皂的有效方法。

Meanwhile, more ligands were tethered onto the comb-like PEG modified surface with a great amount of reactive end groups, which increased cell proliferation. The glycocalyx mimicking surface designed with comb-shaped PEG end-tethered by RGD peptide was proved to present non-specific resistance and excellent cyto-compatibility simultaneously.

此外， CPEG比LPEG具有更多的活性反应基团，用PEG末端活性的醛基固定整合素配体多肽片段RGD，可有效地诱导材料表面的内皮细胞化，改善材料的细胞相容性。

5 At all targets, one shooting peg or mark for each division will be placed in such a way as to allow at least two athletes to shoot at the same time from either side of the shooting peg.

9.1.1.5在所有箭靶上，每一个组别的一个发射标桩或记号的设置，允许同组两名运动员同时从发射标桩的任意一边发射。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。