部分侧移单杆稳定
partially-sway single post stability theory
单杆液压缸
single shot multivibrator
单杆鼠洞
mounting metallurgical specimens
单杆程控电焊拟人机
joystick activated programming welding robot
单杆操纵并列式气动助力器
Paratactic pneumatic strengthener
单杆操纵变速箱
Mono-lever controlled gear-box
单杆安全阀
single-lever relief valve
四回路钢管单杆
four-circuit single-pole steel