查询词典 sulfur black

A brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold.

一种脆的、银白色非金属元素，与硒和硫有关联，用于合金及作半导体，主要作为碲化物存在于铜、镍、银、金矿石中。

The transformation reaction of organic sulfur compounds in the presence of methanol have been discussed in the paper.

本文探讨了甲醇存时有机硫化物的转化反应。

KF series of moisture analyzer,model RC1 residual chlorine analyzer,GQH dualpath infrared CO and CO2 analyzer,model ST201 bench turbiditymeter,model ZD gas chromatography with zirconia's sensor,model WKL microcoulomb sulfur analyzer.

KF型系列水份测定仪，RC1A型残余氯浓度分析仪，GQH型红外线分析仪，ST201型台式浊度仪，ZD型氧化锆检测器气相色谱仪，WKL型微库仑硫分析仪。

In this paper, four parts are included to study the role of cloud dynamics, microphysics and chemistry process in ozone photochemistry and sulfur chemistry in the troposphere.

本文分四部分研究了与云过程有关的云动力学、云微物理和化学过程对对流层大气臭氧光化学和硫化学的作用。

The traditional mineralizer fluorine and sulfur are replaced by basalt and slag.

矿化剂选用了玄武岩和矿渣替代了传统的氟硫矿化剂。

The mixing ratio s of reduced sulfur compounds in Beijing city and Tibetan highland were determined by using the method.

利用该方法测定了北京市和青藏高原地区还原态硫化合物的混合比，结果表明，北京市和青藏高原地区存在较强的COS和CS2 人为和自然排放

Industry often molybdenite ore melting molybdenum trioxide after the addition of sulfur at high temperature hydrogen and then reduced to pure molybdenum.

工业上经常用辉钼矿石熔烧除硫后的三氧化钼再在高温下用氢还原成纯钼。

Monazite, rutile, phosphorus and yttrium ore, tantalum and niobium ore, zircon, ilmenite and exploitation of the reserves volume ranks first in the country, Yunfu pyrite is China's largest reserves of pyrite in the sulfur content of the highest in a large-scale mine.

独居石、金红石、磷钇矿、钽铌矿、锆英石、钛铁矿的储藏量和开采量均居全国首位，云浮硫铁矿是中国硫铁矿中储量最多、含硫量最高的一座大型矿山。

Diallyl trisulfide was synthesized with a yield of 76.4% based on sodium thiosulfate, allyl bromide and sodium sulfide. And diallyl tetrasulfide was synthesized by the reaction of sulfur monochloride with ally1 mercaptan with a yield of 81.0%.

以硫代硫酸钠、烯丙基澳和硫化钠为原料，合成了二烯丙基三硫，产率为76.4%；以一氯化硫和烯丙硫醇为原料合成了二烯丙基四硫，产率为81.0%。

In the second part the reactions of acetophenones with sulfur and morpholine under microwave irradiation were studied.

本文的第一部分对微波辐射在有机合成中的应用进行了较为全面的文献综述。

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。