“counter pressure casting”的概念、定义、翻译、参考文献-科学参考

单词	counter pressure casting
释义	counter pressure casting Encyclopedia 工学低压铸造释 counter pressure casting差压铸造将铸型及金属液分别放置在上压室和下压室内，浇注时上下压室同时通入压缩气体建立一定压力，然后通过排气或进气方式在上下室之间建立压差，使金属液在压差作用下沿升液管流动，自下而上充填铸型并在一定压力下凝固成型的铸造方法。
随便看	statistics of agricultural economic benefits statistics of agricultural factors of production statistics of agricultural funds use benefit statistics of agricultural labor productivity statistics of agricultural science and technology statistics of archival rate of scientific and technological archives statistics of attributes statistics of collection statistics of complete rate of scientific and technological archives statistics of crime statistics of extremes statistics of Investment in scientific and technological statistics of land use benefit statistics of random processes statistics of reuse rate of scientific and technological archives statistics of science and technology archives statistics of scientific and technological finance statistics of scientific and technological personnel statistics of talent statistics of water utilization statistics of work safety accidents statistics on R&D statistics on R&D inputs statistics on science and technology Statistics on the Arts

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