tarnish

用法例句

Development and color analysis of customized metal tooth color guide;

定制金属基底多变色比色板研制及颜色分析

Study and application on solvent impregnated resins technique in separation of nonferrous metals;

萃淋树脂在有色金属分离中的研究和应用

Research of establishing index system's evaluation in nonferrous metals industry' recylle economy development;

建立有色金属工业循环经济评价指标体系探讨

An introduction to Russia s nonferrous metals mineral resources;

俄罗斯有色金属矿产介绍

Where is the right way for china's non-ferrous metals industry to save energy and reduce consumption?;

我国有色金属行业节能降耗路在何方?

A consideration on the exploitation and environmental protection of mineral resources of non-ferrous metals;

关于有色金属矿产资源的开发利用及其与环境问题的思考

Thoughts,goals,priority works,and measures of non-ferrous metals industry developing recycling economy in China;

我国有色金属工业发展循环经济的思路、目标、重点工作与措施

May have a tendency to stain non ferrous metals.

含活性硫添加剂，可能使黄色金属变色。

discoloration of metal surface caused by oxidation.

金属表面因氧化而变色。

Transmittance and Electrochromic Mechanics for Metal Oxide Based Electrochromic Device

金属氧化物基电致变色器件的光透特性及其变色机理

cold-rolling mill for ferrous or non-rerrous metals

黑色或有色金属冷轧机

ferrous and nonferrous rivet

黑色及有色金属铆钉

mill, hot rolling for ferrous or non-ferrous metals

黑色或有色金属热轧机

non-ferrous production metallurgy

有色金属生产冶金学

non-ferrous extractive metallurgy

有色金属提取冶金学

non-ferrous physical metallurgy

有色金属物理冶金学

non-ferrous metals & alloys

非铁金属,有色金属及合金

Research Status of Diffusion Metallizing Technique for Non-ferrous and Alloy

有色金属及合金渗金属技术研究现状

black-coated metal chart

黑色涂层的金属卡片

a substances that colors metals.

一种给金属着色的物质。

recovery of nonferrous metals

有色金属冶炼回收率

Shanghai Non-ferrous Metals Research Institute

上海有色金属研究所

directory of nonferrous metals institutes

有色金属研究所名录

Terminology for plastic working of non-ferrous metals

有色金属加工术语标准

Terminology for mineral processing of non-ferrous metals

有色金属选矿术语标准