1.
The plumbum isotope of ores conform the mixture model of three components, the plumbum of Earth's mantle, the plumbum of Upper Ea rth's crust and the plumbum of strata in the Aketishikan gold deposit.
阿克提什坎金矿床矿石铅同位素符合三元混合模型，三端元为地幔铅、上地壳铅及地层铅。
2.
LEAD ISOTOPIC CORRELATION OF PROTEROZOIC STRATA-BOUND LEAD-ZINC DEPOSITS IN SOUTHERN PART OF JILIN AND LIAONING PROVINCES, AND THE NORTHERN PART OF KOREA
辽南、吉南及鲜北早元古界层控铅锌矿床矿石铅同位素特征对比
3.
Methods for chemical analysis of copper ores lead ores and zinc ores--Determination of lead
GB/T14353.2-1993铜矿石、铅矿石和锌矿石化学分析方法铅的测定
4.
a pencil of soft slate (or soapstone) used for writing on a slate.
用来在石板上书写的软岩（或皂石）铅笔。
5.
STUDY ON MINERAL PROCESSING TECHNOLOG OF THE REFRACTORY OXIDIZED LEAD-ZINE ORE IN SHIZHU
石柱难选氧化铅锌矿石选矿工艺研究
6.
Lead"" pencils do not contain lead, but rather a mizture of clay and graphite.
铅”笔并不含铅，而是粘土和石墨的混合物。
7.
Any of various, often graphitic compositions used as the writing substance in pencils.
铅芯通常指含有石墨成分的铅笔用的书写物质
8.
On Lead Extraction Out of a Slimy Lead-Zinc Ore
从某泥化铅锌矿石中提取铅的试验研究
9.
Almost half of all lead is recovered from recycled scrap. The "lead"in pencils is graphite.
将近一半的铅可刮下重新回收使用。铅笔中的「铅」指的是石墨。
10.
The so-called "lead" in a pencil is not lead at all, but chiefly a different form of carbon called graphite.
铅笔中所谓的铅，并不是“铅”，而主要是一种不同形态的炭，称为石墨。
11.
Determinations for isotopes of lead、strontium and neodymium in rock samples
GB/T17672-1999岩石中铅、锶、钕同位素测定方法
12.
His pockets are full of ochre, dark blue, red lead, and verdigris;
他的衣袋里装满赭石、群青、铅丹、铜绿。
13.
a pencil that has graphite as the marking substance.
用石墨作标记物质的铅笔。
14.
Laboratory Study of No 4 Gold Ore Body Mining by Leaching in Shuikoushan Lead and Zinc Mine
水口山铅锌矿4~#金矿体矿石室内试验
15.
Producing special cement from stone coal and tailings of cooper-lead-zinc ore
应用石煤、铜铅锌矿尾矿烧制特种水泥
16.
Study on the Removal of Pb~(2+) in Water by Manganese Oxide Coated Zeolite
二氧化锰改性沸石去除水中铅的研究
17.
A hard, brilliant, lead-containing glass used in making artificial gems.
铅质玻璃用来制人造宝石的硬而耀眼的含铅玻璃
18.
A gray mineral, essentially PbS, the principal ore of lead.
方铅矿一种作为铅的主要矿石的灰色矿物，主要成分为