retaining device
[医] 固位器
retaining fee
[经] 律师聘请费
retaining plate
[医] 维持板
retaining possession
[经] 保持占有权
retaining powel
[化] 制动爪
retaining ring
[机] 扣环
retaining screw
[医] 固位螺旋, 固位螺丝
retaining valve
[化] 单向阀
retaining wall
n. 拥壁,挡土墙,护岸
retaining wire
[医] 固位丝