self retaining catheter 自留导尿管,潴留导尿管...pressure retaining valve 保压阀...seif-retaining retractor 保留牵开器...intermediate retaining abutment 中间固位桥基,中间基牙...retaining powel 制动爪...retaining screw 固位螺旋,固位螺丝...retaining ring 扣环...asphalt-retaining power 保持沥青能力...retaining device 固位器...retaining wire 固位丝...retaining fee 律师聘请费...oil(-retaining) ring 油环...heat-retaining capacity 蓄热能量...retaining plate 维持板...retaining possession 保持占有权...pressure retaining parts 保压部件...
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