您要查找的是不是：
- A small open railroad car propelled by a hand pump or a small motor. 手泵式四轮小车由一个小马达或一台手泵驱动的小型无篷路轨车
- Centralized lubrication with hand pump. 带手动泵的集中润滑
- Water is fed into the boiler by a hand pump and an injector. 水靠著手动帮浦和注水器被注入锅炉。
- We must study the instruction before operation the pipe bender (hand pump, hydraulic testing pump). 在操作弯管机(手压泵、液压试压泵)之前,我们必须先学习说明书。
- This system includes fuel oil tank, fuel oil pump, fuel oil hand pump, auxiliary engine daily service tank, piping and valves. 本系统由燃油舱、燃油驳运泵、燃油手摇泵、辅机日用油柜、管路及阀件等组成.
- Join the hemispheres, hook them up to a hand pump, aspirator, or vacuum pump, and evacuate them.Students will find it hard, if not impossible, to pull them apart. 将两半圆相接合,连接一手用帮浦并抽出空气,会发现要拉开此两半圆是很困难的。
- Kai button at the hand pump is a fire alarm signal back to the joint controller, and then confirmed by the controller to start the fire pumps, fire pump is not directly activated. 而手报按钮启泵是将火灾信号反馈到报警联动控制器，经确认后再由控制器启动消防水泵，并不是直接启动消防水泵。
- His sooty hand smudged the paper. 他被煤烟熏污的手把纸弄脏了。
- A complaint service lets villagers report local problems, such as malfunctioning hand pumps or teachers failing to show up at schools. 该网路还提供投诉服务，让村民提报地方上的问题，好比抽水帮浦故障，或是教师没来学校上课。
- The gardener asked me for a rotary lawn mower. 园丁向我要一台旋转式割草机。
- Design of Ultra-high Pressure Hand Pump 超高压液压手动泵的研究与设计
- The children walk down the street hand in hand. 孩子们手拉手地在街上散步。
- The teacher asked the pupil to put his hand down. 老师叫这个小学生把手放下。
- The work produces heat, which warms the wood and the nail. Pumping up an automobile tire with a hand pump takes work. Some of this work likewise produces heat, which warms the pump, tire and air. 用人力给汽车轮胎打气需要作功，这种功的一部分也同样产生热，从而使气筒、轮胎和空气发热。
- 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。
- Bill wave his hand to us and then drive away. 比尔向我们挥手告别后开车走了。
- 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。
- She wears a diamond ring on her left hand. 她左手上戴着一枚钻石戒指。
