分子筛骨架脱铝
molecule sieves dealuminum
分布式架调正信号
distributed frame alignment signal
非均三脚架配体
hetero-armed tripodal ligand
非架上抽油杆靠架
Rockwell hardness test rod and drop-pull system
非对称径向转向架
asymmetrical radial bogie
飞机型架设计
Aircraft’s Fixture Design
飞锤架止推轴承
flyweight carrier thrust bearing