In this paper, recent progress and tendency in low-smoke fire-retardant non-halogen compounds for the wire and cable around the world are summarized.
本文综述了国内外电线电缆料低烟阻燃无卤最新进展及今后发展趋势。
Any of a group of substances, most often synthetic organic halogen compounds, that irritate the mucous membranes of the eyes, causing a stinging sensation and tears.
一类物质，大部分是合成的有机卤化物，能刺激眼睛黏膜引起疼痛和流泪。
The electronic structures of 20 nitrogen, sulfur heterocrown ether compounds with side substitute of halogen and trihalomethyl have been calculated by means of AM1.
用AM1 方法计算了20 个卤素及三卤甲基侧取代氮、硫杂冠化合物分子的电子结构。
Results showed that this kind of compounds has excellent photobleaching property. The bleaching effect of phthalocyanines containing halogen substituent is better than the one that is not substituted.
结果表明该类化合物具有很好的光学漂白性，含卤素取代酞菁的漂白效果明显好于不含卤素酞菁的效果。
The halogen atoms play the same scavenging role as nitrogen compounds.
卤素原子同氮化合物一样，作为净化剂。
The fluorescence quenching of these emissive compounds in solution by halogen anions was studied carefully.
研究了它们在溶液中的荧光被卤素离子猝灭的问题。
Without doubt chloroform is one of the most important compounds containing a carbon - halogen bond.
毫无疑问，氯仿是含碳？卤键的最重要的化合物之一。
The source of RHS mainly comes from the photochemical degradation of volatile halogenated organic compounds (VHOC) emission from marine macroalgae and inorganic halogen species from sea salts.
北极地区大气中活性卤素物种主要来自海洋大型藻类释放的卤代烃分解和海盐的贡献。
The present invention relates to compounds of formula (I) wherein R1 is hydrogen, lower alkyl or benzyl which may be optionally substituted by halogen or lower alkoxy;
本发明涉及式（I）化合物及其药用活性盐，其中R1是氢、低级烷基或苄基，其可任选地被卤素或低级烷氧基取代；
Several sulfur compounds with halogen elements are industrially important.
硫与卤素的几种化合物在工业上有重要用途。
Several sulfur compounds with halogen elements are industrially important.
硫与卤素的几种化合物在工业上有重要用途。
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