短语词组短語Upper bracket cover 上機架蓋板Upper diaphragm cover 上膜蓋upper inner cover 上隔板Upper rack cover 頂蓋upper end cover 上耑蓋;繙譯upper handwheel cover 上輪蓋;上手輪蓋Upper Damper Cover 油機減震器上蓋upper ball cover 上軸承蓋upper &cover 上蓋 返回 upper cover