查询词典 lead-free

Lead slag ; Leaching of sodium chloride ; Synthesizing ; Tribasic lead sulfate

铅渣；氯化钠浸出；合成；三盐基硫酸铅

The processing principle for the preparation of tribasic lead sulphate from bismuth hydrometallurgy waste residue by ammonium hydrogen carbonate transformation-nitric acid leaching-lead deposition with sulphuric acid-sodium hydroxide synthesis is introduced.

介绍了铋冶炼浸渣采用碳酸氢铵转化—硝酸浸出—硫酸沉铅—氢氧化钠反应合成三碱式硫酸铅的工艺原理。

Methods Male NIH rats were treated with water containing 0.1% lead acetatic trihydrate for establishing an experimental lead poisoning rats model.

随着现代工业与交通的迅猛发展，环境中的铅污染日趋严重，特别是铅作业场所和城市空气中的铅含量已达到对人体产生严重危害的程度。

Methods Male NIH rats were treated with water containing 0.1% lead acetatic trihydrate for establishing an experimental lead poisoning rats model.

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Methods Male NIH rats were treated with water containing 0.1% lead acetatic trihydrate for establishing an experimental lead poisoning rats model.

方法取小鼠，饮水给予。1%三水合乙酸铅水溶液建立小鼠预防性铅目的评价QQL排铅口服液的促进排铅功能。

Methods Male NIH rats were treated with water containing 0.1% lead acetatic trihydrate for establishing an experimental lead poisoning rats model.

取小鼠，饮水给予0.1%三水合乙酸铅水溶液建立小鼠预防性铅中毒模型，同时灌胃给予不同浓度的受试物，喂养30天后测定血、肝脏和股骨中的铅含量。

It is one in which a group of unelected people have enormous power, power which can lead to a great depression or which can lead to a great inflation.

在这个体系中，一群不是经过选举的人手握大权。这种权力可以导致经济萧条，也可以导致物价飞涨。

The concentrations of lead in Canned fish and fresh fish are lower than the national health standard(GB14939-2005)(GB2733-2005),the concentration of lead in 3 dried fish excess the standard(GB10144-2005),unqualification rate is 7.5%.

鱼罐头和鲜鱼中铅的含量均低于国家卫生标准(GB14939-2005)(GB2733-2005)，有3份鱼于铅含量超标(GB10144-2005)，不合格率为7.5%。

9 With reference to Exception No.1 to 11.2.8 , the magnet coil of a molded bobbin transformer having a slot for the crossover or start lead - unspliced at the windings - is acceptable as crossover lead insulation if :"

& 11.2.9 参照11.2.8的例外1，胶芯的磁铁线圈的变压器的交叉或开头引线有一个狭缝——在绕组处没有连接——作交叉引线绝缘是可接受的，如果：&

Lead waste and scrap export of lead powder and flake powder exports 7367901119000 other zinc content ≥ 99.99% of unwrought zinc exports 7377901120000 lower than 99.99% Zinc Unwrought zinc alloys ...

7802000000 铅废碎料出口735 7804200000 铅粉及片状粉末出口736 7901119000 其他含锌量≥99.99%的未锻轧锌出口737 7901120000 含锌量低于99.99%的未锻轧非合金锌。。。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。