查询词典 Peg

It was shown from the results that emulsifier TP-Ⅴ which was prepared by PEG 4000 reacted with TME, in the molar ratio of TME to PEG 2:1, at about 110℃ for 1 h, catalyzed by boron trifluoride diethyl etherate, has a very good emulsifying impact for TME. Particle size distribution of the emulsion was homo-geneous and viscosity of the emulsion was small.

实验结果表明，以M相对适中的PEG4000与TME按物质的量比2： 1、在催化剂三氟化硼乙醚作用下、110℃左右反应1h合成的乳化剂TP-Ⅴ，对萜烯基环氧树脂具有很好的乳化效果，制备的乳液粒子粒径均一度较高，乳液表观黏度较小。

From the ester n, the intermediate Ⅲwas produced by the Sonogashira coupling reaction with terminal alkynes under the co-catalysts of Pd2 and Cul. These final products of alkynyl benzamide derivatives IV were obtained by the cleavage of support with primary or second amines.

液相合成兼容了固相合成可快速简便地对产物进行分离纯化以及溶液相合成可在均相条件下进行反应和用常规手段对反应中间体进行分析检测的优点，用聚乙二醇4000作为可溶性聚合物支持体，通过醚键将[1，3，5]氯三嗪连接在PEG上制备成PEG支持的新型的可溶性聚合物试剂I。

Samples of the equilibrium solid phase in Rb_2SO_4-PEG4000-H_2O system at 25 ℃ analyzed by TGA showed that they consisted of anhydrous salt. Six zones were observed in the complete phase diagram. They are L, L+L, L+S, 2L+S and L+2S, respectively. The binodal curves were given using a four-parameter equation y = a + bx~(0.5)+cx+dx~2. The tie lines were correlated by the Othmer-Tobias and Bancroft equations.

同时我们用热重分析仪对Rb_2SO_4—PEG 4000—H_2O三元体系在25℃时的平衡固相进行分析，发现在实验研究的温度范围内，体系的平衡固相均为无水盐，且在体系的完整相图中，观察到六个相区，分别为L，L+L，L+S，2L+S和L+2S相区，即非饱和的单液相区，非饱和的双液相区，饱和的单液相区，饱和的双液相区和两种固相(Rb_2SO_4，PEG 4000)存在的饱和单液相区。

The results indicated that the seed vigor of Brudzynska, Bezenchukii Bromus inermis is lower under the level of 5%, but it is high under the level of 10%-20%.

在5%PEG的干旱胁迫下，Brudzynska、Bezenchukii无芒雀麦的种子活力较低，但在10%~20%PEG的干旱胁迫下，两者的种子活力较高，而内蒙古正镶蓝旗野生沙地雀麦和内蒙古克什克腾旗野生沙地雀麦种子活力较低。

It is difficult to restore the large defect of pulpless tooth body. The dentinal peg and root canal peg filling were used before, which needed specialized instrumnets and materials.

无髓牙牙体大面积缺损的修复是比较困难的，主要有牙本质钉、根管钉桩核等修复方法，均需要专门的工具器械和材料。

PLLA/PEG multiblock copolymers were synthesized by coupling reaction of dihydroxylated PLLA/PEG triblock copolymers with 4, 4'-diphenylmethane diisocyanate and nearly quantitative conversation was obtained.

聚乳酸具有良好的力学性能、生物相容性和生物降解性能，且降解产物能参与人体的新陈代谢，当前己成为生物降解医用材料领域中最重要的材料之一。

3There were fusiform cells on the surface of the matrix by SEM, and the cells tightly attach into the membrane.

3扫描电镜下可见PEG/PBU膜表面有梭形的成纤维细胞出现，且成纤维细胞紧密贴附于PEG/PBT膜上。

NaCl and iso-osmotic PEG had inhibitory effect on the germination of two halophytic seeds, and the inhibitory level of PEG was greater than that of iso-osmotic NaCl. Inhibitory effects of NaCl and water stress mainly showed lowering the seed germination rate, delaying initial time of seed germination and extending the time of seed germination.

本研究从生理和分子角度对其耐盐性进行了初步的探讨，开展这两种盐生植物耐盐相关基因的克隆及盐爪爪液泡膜上多个耐盐相关基因的遗传工程，为作物和林木的遗传改良奠定坚实的理论和实验基础。

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。

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。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。