1. 金属 五金：mark 标志,商标 | metals 金属,五金 | negotiable 可谈判的,可转让的
2. 材料的类型：材料的类型Types of materials, metals, ceramics, polymers, composites, elastomer | 部分材料性质复习Review of selected properties of materials, | 电导率和电阻率conductivity and resistivity,
1. " Heavy metals pollution control will be the cardinal task in environmental protection, " Zhou said.
2. A system of management of waste import enterprises by category is implemented and the establishment of waste metals and waste plastics parks is encouraged.
3. Wuhan Iron and Steel agreed to buy 50 percent of stake in Centrex Metals'iron ore project in Australia for $ 127 million.
4. This scenario sends a tremor through investor markets and drives more cheap money into precious metals.
5. It said the product was taken off shelves in August, after an official spot check found it contained excessive residues from heavy metals.
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6. Only recently has palladium entered the China market as a unique jewelry element, not an addition to other metals.
7. The restaurant's ground floor is classically decorated with metals and leather.
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8. A concentrated mixture of chemicals is then pumped through the pipes, sinking into the clay below and leaching out rare earth metals as it passes.
9. Jiangxi Copper Co advanced among metals producers after overseas shipments rose 38 percent from a year earlier.
10. The hard commodity market includes base metals and other industrial resources such as coking coal.