Using the composite graphite rods with the sulphide of iron group metals as anode, the double-wall carbon nanotubes have been fabricated by arc discharging under hydrogen atmosphere.
用含有铁族金属硫化物的复合石墨棒作阳极，在氢气氛围下实施电弧放电，制备出了双壁纳米碳管。
The separation mechanism of nickel and iron by sulphide precipitation and process influence conditions were investigated.
研究了硫化沉淀分离镍与铁的分离机理及工艺影响条件。
In this dissertation the technology and fundamentals of pressure leaching of high iron-zinc sulphide concentrate and polymetallic sulphide ore are studied systematically.
锌精矿及多金属复杂硫化矿的加压浸出工艺和理论进行了系统研究。
The results of composition analyses show that Ningcun china stone is mainly composed of quartz, sericite and feldspar; iron is contained in silicate, sulphide, oxide and hydroxide minerals.
结果表明：宁村瓷石主要由长英质矿物组成，铁元素主要以硅酸盐矿物，硫化物和氧化物及氢氧化物等形式存在；
In this dissertation the technology and fundamentals of pressure leaching of high iron-zinc sulphide concentrate and polymetallic sulphide ore are studied systematically.
本论文对高铁硫化锌精矿及多金属复杂硫化矿的加压浸出工艺和理论进行了系统研究。
Both the occurrence of authigenic iron sulphide and quick decrease of magnetic parameters at the surface clearly show that sediments from Core CSH1 have undergone early diagenesis.
自生成因的铁硫化物的存在以及表层磁性参数的快速降低，都明确表明沉积物遭受了早期成岩作用。
It is noteworthy that the major composition of iron sulphide in coastal mangrove sediments is pyrite and mostly in the form of pyrite framboids.
红树林泥炭沉积物中铁的硫化物主要以黄铁矿形式产出，且以莓球状形态为主。
The black deposits produced in the system were mainly composed of iron sulphide and iron oxide.
系统产生的黑色沉淀物主要由硫化铁和氧化铁构成；
The proportions of flavin, non-heme iron and labile sulphide in the eluate was found to be 1: (8~10) :10.
经分析，其异咯嗪、非血红素铁以及不稳定硫之比为1：（8～10）：10。
Iron-sulfur centers, which may consist of two or four iron atoms complexed with an equal number of sulphide ions, mediate 1-electron transfer reaction.
铁硫中心，这可能由两个或四个铁原子与硫离子的数目相等的复合物，介导电子转移反应。
Iron-sulfur centers, which may consist of two or four iron atoms complexed with an equal number of sulphide ions, mediate 1-electron transfer reaction.
铁硫中心，这可能由两个或四个铁原子与硫离子的数目相等的复合物，介导电子转移反应。
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