mercurial barometer短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 水银气压计 By means of the mercurial barometer and pore size analyzer, the effects of bridged particles on the pore volume distribution in nano- meter cemented carbide powder and its compact were investigated. 比表面分析和扫描电镜观察等手段研究了桥接团粒在分离和破碎过程中，相对松装密度和比表面积的变化及高能破碎对粉末成形致密化的影响。 dictall