单词	seating device
释义	seating device 坐具
随便看	positive contrast of reinforcement positive contrast ventriculography positive contribution Positive control Positive Control Area positive control areapca Positive Control Bombardment System positive control cam Positive Control Communication System positive controllability Positive Control Launch positive control line positive control medicine Positive Control Routes positive control test positive control thyratron positive-control thyratron positive control type positive convergence Positive conversion rate Positive convexity positive cooling positive cooperation positive cooperativity positive coordinate