The look is completed by solid brass and silver-plated candelabra parts and a scale wheel.
外观完成固体黄铜和镀银烛台零件和车轮的规模。
Recent years' geological exploration has confirmed that the proved copper reserves in Dabaoshan copper(silver) polymetallic ore field has reached middle scale.
云南维西大宝山铜（银）多金属矿区通过近年的地质勘查，探明的铜资源量已达中型规模。
The principle, method, experiment facilities and result of the realization of the International Temperature Scale of 1990(ITS\|90) above silver freezing point at NIM are described.
叙述中国计量科学研究院复现我国银凝固点以上国际温标（ITS 90 ）的原理、方法、仪器设备、实验结果、温标不确定度评定以及参加国际关键比对的初步结果。
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