卤

In our research on study chemical reaction of active methylene compounds and brom-acetophenone. Because of brom-acetophenone is compound that contain carbonyl and halogen ,which will take place electrophilic substitution and nucleophilic addition. When active methylene compounds are ethyl acetoacetate and β-diketone, controlling reaction condition, we have found that mono-substitution's production and di-substitution's. production is isolated; active methylene compounds are acetoacetanilide and acetoacetanilide derivate, pyrrolidin-2-one derivants were obtained by substitution and close-ring reaction .but there is no report about it.

本文是让活泼亚甲基类化合物与溴代苯乙酮发生化学反应，由于溴代苯乙酮是含有羰基的卤代烃结构，它可以发生亲电取代和亲核加成反应，当活泼亚甲基类化合物为乙酰乙酸乙酯和β-二酮时，控制反应条件可以发生单取代和双取代两种产物；当活泼亚甲基类化合物为乙酰乙酰芳胺类化合物来反应时，溴代苯乙酮中的羰基与氨基会发生分子内的关环反应生成吡咯烷-2-酮衍生物，这在以前的研究中是没有发现的。

Dilatant flame retardants can satisfy the current development trend of les...

膨胀型阻燃剂符合当今要求阻燃剂少烟、低毒的发展趋势，是有望实现阻燃剂无卤化的途径之一。

Disentwine clamp fixed the bulb, take away halogen bulb. Put HID bulb in with the same model carefully, fasten the lamp clamp, and shoot high-voltage line out of the lamp unit.

松开灯泡的固定夹，取下卤素灯泡，小心将同一型号的 HID 灯泡换入，将灯泡的夹具固定好，并将 HID 灯泡的高压线伸出大灯总成外。

On the basis of the analysis of the mechanism of β-elimination reaction of haloalkyl,the influence regularity of the dissolvent polority for the reaction is discussed.

在分析了卤代烷β－消去反应的反应机理的基础上，讨论了溶剂的极性对反应的影响规律。

It is well known that the acetonitrile (CH_3CN) can form stable complex compound with boron halide (BF_3). The sample was complexed in a platinum crucible by acetonenitrile and dissolved by HF: HNO_3 (3:1) solution in a pressure sample dissolver at proper temperature.

基于硼的卤化物(BF_3)能与乙腈(CH_3CN)形成稳定的络合物，将试样置于铂金坩埚内加入乙晴作为络合剂，用HF+HNO_3(3：1)在压力溶样器内加温溶解。

We are also a main drafter and reviser of the state standards GB/T 18661 Metal Halide Lamp.

同时企业也是GB/T 18661"金属卤化物灯"国家标准的主要起草和修订单位。

It is a vapour discharge lamp containing a mixture of dysprosium iodide and halmium iodide.

镝灯是一种稀土金属卤化物灯，是利用在碘化镝、碘化钬的蒸汽中放电发光而制成。

Due in large part to relativistic effects this element possesses unique properties such as a higher than expected electron affinity and the formation of strong covalent bonds to soft elements like the heavier halogens and sulfur.

在大的部分由于这元素拥有独特特性的相对论性效应象那样一高，期望电子密切关系和对象更沉重的卤和硫一样的柔软的元素的强大的covalent 契约的形成。

Erythrosin e system and ethyl eosin system can be applied to the determination of chlorpromazine hydrochloride with conventional spectrophotometry, and eosin Y system can be used by color fading spectrophotometry.

在NaAc HCl缓冲介质中，盐酸氯丙嗪可与曙红Y、赤藓红、乙基署红等卤代荧光素染料反应，形成离子缔合物，溶液颜色发生明显改变，可用光度法测定。

"General anesthesia induces loss of consciousness, most often using hydrocarbon s (e.g., cyclopropane, ethylene); halogenated hydrocarbon s (e.g., chloroform, ethyl chloride, trichloroethylene); ethers (e.g., ethyl ether or vinyl ether);"

全身麻醉药会让人丧失意识，最常用的是烃；卤化氢(如氯仿、氯乙烷、三氯乙烯)；醚如乙醚、乙烯醚

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。