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- germanium tetraethyl 四乙锗
- A computer chip made from organic molecules rather than silicon or germanium. 生物芯片用有机分子而非硅或锗制造的计算机芯片
- Supply High Purity Germanium Bracelet. 供应高纯锗手链。
- Germanium has higher electric conductivity than silicon. 锗的导电率比硅高。
- Germanium is an element, just as copper and oxygen are elements. 锗是一种元素;就象铜和氧是元素一样.
- Tests on products containing germanium showed there was a risk. 测试产品的含锗量能够显示其危险性。
- There is much gallium and germanium in zinc-leaching residues. 锌浸渣中含有数量可观的镓锗。
- A substance, such as tetraethyl lead, added to gasoline to reduce engine knock. 抗震剂一种加在汽油中可以减轻发动机震动的物质,如甲乙基铅
- Until today germanium is the present substance on earth with no exception. 直至今天锗才毫无异议地成为地球上是纯净的物质。
- In computers, these diodes are primarily germanium or silicon crystals. 在计算机中,这些二极管基本上是锗或硅晶体二极管。
- Diagnostic criteria and principles of management of occupational acute tetraethyl lead poisoning. 职业性急性四乙基铅中毒诊断标准及处理原则.
- An arsenic atom can take the place of a germanium atom in the lattice. 一个砷原子能取代点阵子中的锗原子.
- He described the evolution of resistance in Tetranychus against tetraethyl pyrophate. 他叙述了恙虫对焦磷酸四乙脂的抗性进化。
- Used in manufacture of organic germanium and in chemical industry,etc. 该产品用于生产有机锗;化工等.
- The transparent bulk sodium borosilicate gel was prepared using tetraethyl orthosilicate, boric acid. 摘要在钠先驱体中,采用醋酸钠、甲醇钠、乙醇钠3种先驱体;
- Tetraethyl lead (TEL) is a Class B poison and environmentally unacceptable for health reasons. 四乙基铅(TEL)是乙种的毒物并且在健康理由方面被环境所不能接受的.
- Objective To study the health state of workers exposed to tetraethyl lead petrol, and to find a surveillant index for them. 目的研究接触四乙基铅汽油作业人员健康状况,探讨四乙基铅汽油接触者的监护指标。
- Si-O-Si polymer superfine fibers were prepared by sol-gel and electrospinning methods using tetraethyl orthosilicate (TEOS) as a starting material. 电纺法是聚合物溶液或熔体借助高压静电作用进行喷射拉伸而获得超细或纳米级纤维的一种纺丝方法。
- Germanium is a semiconductor material with its conductivity lying between that of conductors and that of insulators . 锗是一种半导体材料,其导电系数介于导体与绝缘体之间。
- Manganese-based organic compound is present international replace tetraethyl lead, but more than tetraethyl lead more good ANTIKNOCKS new one. 锰基有机化合物是目前国际上代替四乙基铅,且比四乙基铅更为优良的新型抗爆剂之一。