the high content and the high water temperature favour the solution of salt and metals from the underground formations. 高含量和高水温促进了地下岩层里盐类和金属的溶解。
Because of differences in the expansion rates of the two metals, the thermostatic spring winds up or unwinds with changing temperature . 由于两种金属的膨胀率不同，当温度变化时，恒温制弹簧将卷绕或松开。
He is knowledgeable about the chemistry of metals 他对金属的化学性质知之甚多。
He is knowledgeable about the chemistry of metals 他对金属的化学性质知之甚多。
Metallic coatings . refilling for spray coating 金属镀层.喷镀镀层用金属的再填加
Are the materials metal , ceramics or plastic 材料是金属的、陶瓷的还是塑胶的？
Corrosion of metals ; electrochemical corrosion tests 金属的腐蚀.电化学腐蚀试验
Standard guide for evaluating metals for oxygen service 评估供氧用金属的标准指南
Demand for metals is on the rise around the world 全球各地对金属的需求都在趋旺。
A creak and a dark whirr in the air high up 空中响起金属的摩擦声和低沉的回旋声。
