Submarine temperature, pressure, gas compositions, geothermal gradient and syngenetic water salinity control the depth of hydrate zone basement.Autochthonous bacteriogenic mod...

海底温度和压力、地热梯度、气体成分、同生水盐度等控制着水合物稳定带基底的深度和厚度。

Single chamber high pressure gas quenching vacuum furnace,double chamber and multichamber vacuum furnaces implementing the acetylene low pressure carburizing were briefly introduced.

简要介绍了实施乙炔低压渗碳的单室高压气淬真空炉,双室及多室真空炉。