the influences of basic metal chemical composition, heat treatment conditions and welding parameters on the pressure vessel brittle fracture have been investigated.
研究了诸如化学成分、热处理条件和焊接因素对压力容器脆性破坏的影响。
it is located in a valley sedimentary belt in the sumater gold silver basic metal mineralization zone.
它位于苏门答腊金银溅金属成矿带的宽坦河流域的準平原化河谷堆积地带。
a mixture of a basic metal and small amounts of other metals to change the properties of the basic metal.
在金属中加人少量其他金属,而改变其性质的一种金属混合物。
in the light of the research above, the conclusion that doping basic metal oxide can improve the sensitivity and selectivity to alcohol can be drew.
因此,可以通过掺杂堿性金属氧化物提高乙醇气敏元件的灵敏度和选择性。
alloy, a mixture of a basic metal and small amounts of other metals to change the properties of the basic metal.
合金, 在金属中加人少量其他金属,而改变其性质的一种金属混合物。
this paper has discussed the heat stableness of the basic metal nitrides by thermodynamic principles, and compared the results with the facts of the experiments.