查询词典 graphite

A substance, such as water or graphite, that is used in a nuclear reactor to decrease the speed of fast neutron s and increase the likelihood of fission.

慢化剂一种物质，如水或石墨在核反应堆中用来减缓中子运动速度和提高裂变可能性的物质

The development of the lead free cutting brass containing bismuth and graphite/copper composite was summarized.It can be concluded that the key points for cutting brass containing no lead are the choices of elements which can form brittle but not hard intermetallics and procedure which can make the intermetallics distr...

详细介绍国外无铅易切削铋黄铜研究开发的一些成果和石墨/铜合金复合材料的研究情况，总结国内无铅易切削铜合金的研究情况，结合自己的研究结果，指出无铅易切削铜合金的研究方向是采用适当的元素形成脆而不硬的金属间化合物，并采用一定的加工手段使其呈弥散分布。

The process of determination for lead in paint material of inside wall by graphite furnace atomic absorption spectroscopy using (NH_4)_2HPO_4 as matrix modifier is desc ribed.

本文描述了用(NH_4)_2HPO_4作基体改进剂、石墨炉原子吸收法直接测定内墙涂料中铅的方法。

The other sample was pure single crystal graphite.The cryst...

初步掌握了用无烟煤分别合成多晶石墨和单晶石墨的方法。

A method for the determination of antimony potassium tartrate with precon- centration of polyvinyl pyridine chemically modified electrod by using graphite furnace AAS is described.

本文研究了聚乙烯吡啶化学修饰电极预富集——石墨炉原子吸收法测定酒石酸锑钾的方法。

Hainan is rich in minerals, notably high-grade iron and tungsten, but also rich in titanium, manganese, salt, copper, bauxite, molybdenum, gold, silver, coal, cobalt, graphite, and crystal. Hainan's rich offshore fishing grounds provide shrimps, scallops, tuna, and Spanish mackerel, and pearls are harvested in the shallow bays surrounding the island.

海南富有矿物特别是高等级的铁和钨，也富有钛、锰、盐、铜、矾土、钼、金、银、煤、钴、石墨和水晶；海南岛拥有大量的渔场供应虾、扇贝、金枪鱼和马鲛鱼，同时在岛周围的浅海湾可以采集到珍珠。

The missile-sized pencil was constructed of 8,000 Douglas Fir boards, a 10-inch graphite core, and a 200 pound rubber eraser.

这支飞弹大小的铅笔是用 8，000 块黄衫板、一支 10 吋的石墨笔心和一个 200 磅重的橡皮擦制作而成。

George II controlled the graphite by declaring it a crime to ship it out of the country.

乔治二世为了控制石墨开采，宣告用船运石墨出国是一种犯罪。

George II controlled the graphite by declar ing it a crime to ship it out of the country.

乔治二世为了控制石墨开采，宣告用船运石墨出国是一种犯罪。

George II controlled the graphite by declaring it a crime to ship it out of the country.

com 控制石墨开采，宣告用船运石墨出国是一种犯罪。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。