您要查找的是不是：
- engine hand piece 发动机手柄
- A dental laser shines a powerful beam through a fiber-optic cable connected to a hand piece resembling a standard drill. 医牙激光通过连在手上类似一个标准牙钻的东西上的光导纤维索而发射出强大的光束。
- The hand piece releases fine, pressurized crystals, which much like sandblasting exfoliate the stratum corneum, or the skin's outermost layer. 设备释放出健康的加压晶体，它很像喷砂去除角质层，又称皮肤的外层。
- Examination of medical instruments in stomatology departments of hospitals in Zhuhai City found that the positive rates of HBsAg and HBV-DNA were 12.0% and 8.0% respectively, of which, the positive rates of hand piece were 21.8% and 16.4% respectively. 经检测，珠海市医院口腔科医疗器械HBsAg与HBV－DNA阳性率分别为12.;0%25与8
- His sooty hand smudged the paper. 他被煤烟熏污的手把纸弄脏了。
- Fill your radiator with water, or your engine will overheat. 给你的散热器充水，否则引擎会过热。
- The engine of the car has been souped up. 这汽车的发动机加大了马力。
- The children walk down the street hand in hand. 孩子们手拉手地在街上散步。
- He climbed into the cockpit and started the engine. 他爬进座舱，把发动机开动起来。
- The teacher asked the pupil to put his hand down. 老师叫这个小学生把手放下。
- Please don't tinker with my car engine. 请不要乱弄我的汽车发动机。
- She picked up a new magazine with her free hand. 她用空着的一只手拿起一本新杂志。
- My father is a dab hand at baking bread. 做面包是我父亲的拿手好戏。
- I'd only gone five miles when the engine packed up. 我刚开出5英里，汽车的引擎就出了毛病。
- The engine of the car is out of action. 这辆小汽车的发动机出了故障。
- Bill wave his hand to us and then drive away. 比尔向我们挥手告别后开车走了。
- Let us show you to see the engine to test. 让我们指给你看要测试的发动机。
- Hand me of a the ripest tangerine please. 请递给我一个最熟的橘子。
- He came into the room with a sword in his hand. 他手里拿着剑走进了房间。
- The fire engine played on the flames. 救火车的水柱喷射在火焰上。
