金属时代
- 网络the metal age
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金属时代
Times of the metal
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早在裸金属支架时代,就曾报道过3%的亚急性血栓发生率。
In the early days of bare-metal stenting , there was a3 % subacute thrombosis rate reported .
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由于Re,Os独特的地球化学性质,Re-Os同位素体系可以用来确定特定矿床的形成年龄,特别为金属矿床形成时代的研究开辟了新的途径。
Re-Os isotopic system is a widely used method in earth science researches since 1990 's , the u-nique characteristics of Re-Os isotope make it possible to determine the age of some special kinds of ore de-posits , especially the age of metallic ore deposit .
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粤北连平地区钨锡多金属矿床成矿时代研究
Metallogenic ages of tungsten-tin polymetallic deposits in Lianping area , northern Guangdong Province
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管道工程中,塑料给水管取代金属给水管是时代发展的需求。
In the pipe engineering , replacing the metal water-supply pipe with the plastic water-supply pipe is the requirement of the development of the times .