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- lead and its chemical compound 铅及铅的化合物
- Scientists dream of using the vast storage capacity that enables DNA and its chemical cousin RNA to hold the complex blueprints of living organisms. 科学家梦想对DNA及其同类化学物质RNA所具有的用于保存复杂生物信息的巨大存储能力加以利用。
- Despite its name and its chemical relationship to cyanide, thiocyanate is not toxic. 除名称和化学结构上和氰化物有相似之处外，硫氰酸是无毒的。
- GF-AAS was applied to the determination of lead and cadmium in Kuhuang injection and its raw Chinese traditional medicines. 应用石墨炉原子吸收光谱(GF-AAS)法测定了苦黄注射液及其生中药材中铅及镉量。
- Many microporous are showed in polyaniline coatings,and its chemical compositions are varied in different positions. 研究表明:聚苯胺膜层并不是均匀覆盖在基体表面,而且膜层表面存在很多的微孔;
- Methods The leaf, stem, seed and powder were studied phy t otomically and its chemical constituents identified qualitatively by TLC. 方法对茜草藤的叶、茎、籽实及其粉末进行了解剖学研究、化学成分定性试验及薄层色谱试验。
- CHCl3 is a kind of common organic pollutant and its chemical property is stable, it can not be degraded by normal method. 三氯甲烷是常见的有害有机污染物且性质稳定，通常方法难以降解。
- Methods: Both the maro and micro scopic character-istic of the crude drug were examined and its chemical constituents monitored by TLC. 方法:采用药材性状、显微特征描述及薄层鉴别方法。
- Objective: To extract the volatile oil from rhizome,leaf,flower of chive by chemical method and its chemical components were identified. 目的:用化学方法从韭菜的根茎、韭菜叶、韭菜花中提取挥发油,并鉴定出其挥发油的化学成分。
- Lead and its Compound Poisoning (not Including Tetraethyl Lead) 铅及其化合物中毒(不包括四乙基铅)
- That book ends with a summary and its conclusion. 那本书的结尾是概要和结论。
- TY germicide is a harmless plant disinfectant which consists of the effective components of wild plants, and its chemical components are complicated. TY杀菌剂是利用野生植物的有效成分配制成的无公害植物杀菌剂,它的化学成分复杂。
- Lead and tin are malleable metals. 铅和锡是可锻的金属。
- This glutamate is identical to the flavor-enhancing monosodium glutamate (MSG) and its chemical cousins found in thousands of food products. 这谷氨酸与风味增强味精是相同的，并且它的化学类似物被发现在数以万计的食品产品中。
- Lead and manage our Chongqing office. 领导和管理重庆分公司。
- Methods Volatile oil from Clematis obscura was extracted by steam distillation, and its chemical components and relative contents were separated and analyzed by GC/MS. 方法水蒸气蒸馏法提取秦岭铁线莲的挥发性化学成分,气相色谱质谱分离并分析鉴定各成分及其相对含量。
- Lead and manage the Finance Department. 领导及管理酒店财务部。
- His pockets are full of red lead and verdigris. 他的衣袋里装满铅丹和铜绿。
- Glyoxylic acid was an important organic chemistry midbody, with its chemical property active,its application field was very abroad and its production was highly paid attention to. 乙醛酸是一种重要的有机化工中间体,化学性质活泼,应用领域广泛,因而它的合成倍受关注。
- Lead and cadmium in optical and filter glass. 光学和过滤玻璃中的铅和镉。
