戊基

The contact angle of glassfiber epoxy resin fluoridized by 3-(1H, 1H, 5H-Octafluoropentyloxy)-1, 2-Propenoxide hasincreased from 51.3°to 75.3°, and the surface tension has reduced from 36.5mN/m to25.5mN/m accordingly.

同时经过环氧丙基八氟戊醚处理的环氧玻璃钢表面对水的接触角也由原来的51.3°增大到75.3°，其表面张力由36.5mN／m减小到25.5mN／m，达到一定的疏水疏油效果。

It is found that compared with the untreated glass fiber reinforced unsaturated polyester, the fluoridized FRP"s property of anti-water and anti infirm-acid has enhanced, while theproperty of anti- strong acid, anti-strong alkali and anti-organic solvent hasn"t changed much.The property of anti-acid and anti-alkali of the glass fiber reinforced epoxy resin fluoridizedby 3-(1H, 1H, 5H-Octafluoropentyloxy)-1, 2-Propenoxide has a corresponding increase, but theproperty of anti-organic solvent hasnt changed much.

研究发现，经G-02、G-04处理后的聚酯玻璃钢的与未处理的聚酯玻璃钢相比，其耐水性增强，耐弱酸性也有所增强，但耐强酸性、耐碱性、耐有机溶剂的腐蚀性变化不大；而经环氧丙基八氟戊醚处理后的环氧玻璃钢其耐酸耐碱性都有相应的增强，但是其耐有机溶剂的腐蚀性无太大变化。

The results of the TG and DTG curves show that, in the whole intumescing process, APP, PER and MEL cooperate with each other and synergism is generated; The kind of base resin and its contents, the ratio of the component of fire retardant system and their contents all have great influence on the thermal degradation behaviors of fire retardant coating; The concentration of oxygen has no influence on the thermal degradation of fire retardant coating below 345℃, while the influence can not be neglected above 345℃, but compare with the factors mentioned previously, the influence is small.

研究表明，聚磷酸铵-三聚氰胺-季戊四醇三者能密切配合，对阻燃起到协同作用；基料树脂的种类及含量、阻燃体系配比及含量对防火涂料的热分解行为有较大的影响；氧气浓度在低温阶段(345℃以前)对热解行为几乎没影响，而在高温阶段(345℃以后)则对热解行为有影响，但相对于前面的因素对热解的影响来说，氧气浓度对防火涂料的热解行为影响较小。

The effects of different of categories surfactants, the proportion of surfactant and cosurfactant , the chain lengths of alcohol and alkane, temperatures and pH values on the W/O microemulsion phase areas are systematically studied in the dissertation. SEM and laser scatting techniques are used to verify particles'sizes of W/O microemulsion. Consequently, a system TritonX-100/n-C〓H〓OH (weight ratio 1: 1)/C〓H〓/H〓O is obtained which is a stable system with relatively large W/O microemulsion phase area.

本文系统研究了表面活性剂种类、助表面活性剂的链长、表面活性剂和醇的配比、烷烃的链长以及温度、pH值等对W/O微乳液相区域的影响，并用SEM、激光光散射等对微乳液粒度进行了表征，从而获得一种稳定的、W/O微乳液区域较大的体系：壬基苯酚聚氧乙烯醚(TritonX-100)/正戊醇(质量比1：1)/环己烷/水体系。

METHODS: Left coronary artery, mural coronary artery proximal end, mural coronary artery and mural coronary artery distal end of 10 patients with coronary artery bypass grafting were treated with heparin-saline and 4% glutaral.

用肝素-生理盐水和4%戊二醛溶液常规处理10例心肌桥冠脉搭桥术患者切除的左冠状动脉，取壁冠状动脉近段、壁冠状动脉段、壁冠状动脉远段，扫描电镜观察其血管内皮细胞和基膜特征。

The reaction of sodium alkylcycloperitadienide with metal chlorides gave derivatives of bisdichlorides of titanium, zirconium and hafnium where alkyls were n-propyl and n-butyl.

本文报导烷基环戊二烯基钠与金属氯化物反应合成钛、锆和铪的双金属二氯化物以及通过卤素交换制备双钛的二氟化物的方法。

Objective A multiresidue method based on solid-phase extraction andgas chromatography with electron capture detector was developed for thesimultaneous determination of 15 pesticides (Dichlorvos, Dimethoate,Parathion-methyl, Malathion, Parathion, Fenpropathrin, Lambda-cyhalothrin,Cypermethrin,Esfenvalerate,Deltamethfin,Quintozene,Dieldrin,Heptachlor,α-Endosulfan,β-Endosulfan) in drinking water.

目的：建立同时检测饮用水中15种农药残留的固相萃取-气相色谱分析方法，所检测的农药包括5种有机磷：敌敌畏，乐果，甲基对硫磷，马拉硫磷，对硫磷；5种有机氯：五氯硝基苯，狄氏剂，环氧七氯，α-硫丹，β-硫丹；5种拟除虫菊酯：甲氰菊酯，三氟氯氰菊酯，氯氰菊酯，氰戊菊酯，溴氰菊酯。

In this thermodynamic study, the minimum requirements in molar fraction of the solvents (x3) on the azeotropic feed plate are: 0.20 for N,N-dimethylformamide, 0.36 for 2-ethoxyethanol, 0.40 for 1-pentanol and 0.66 for butyl propionate,.

在这个热力学研究中，共沸混合物喂料盘上各溶剂摩尔分数最小值(x3)分别是：N，N-二甲基甲酰胺：0.20；2-乙氧基乙醇：0.36；1-戊醇：0.40；丙酸丁酯：0.66。

Therefore, the research of synthetic method of flavonoids has the important value of scholarship and application.

因此，研究异戊烯基黄酮类化合物的合成方法具有重要的学术和应用价值。

With structure similar to that of vitamin K, Coenzyme Q10 also known as Ubiquinone 10 is a kind of fatsoluble quinone (C6H4O2), where "10" refers to the number of isoprenyl chemical subunits.

辅酶 Q10又名泛醌10，是一种脂溶性醌，其结构类似于维生素K，因其母核六位上的侧链——聚异戊烯基的聚合度为10而得名，是一种醌环类化合物。

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％。