这种装置叫做“便携式通用轻型堵漏包”(其英文缩略语为PLUG,正好有塞子的意思)。 它是由聚酯纤维和聚氯乙烯制作的圆柱形气球,并安装了发动机带动的水泵。
The Portable Lightweight Ubiquitous Gasket (PLUG) is a sausage-shaped balloon made of polyester and PVC, and fitted with motorised pumps.
学校提供一套完成设计所需的工具包,包括无线电控制设备、电池、气球、电动机和制作材料。
A project kit is provided consisting of radio control equipment, batteries, balloons, electric motors, and construction materials.
救 生包内小气球使用时,吹大来放入袋子中,可延缓救生包下沉的时间,以利 于溺水者抓住;
The ballonet inside the survival pack can be aerated and placed into the bag to postpone the sink time of the survival pack, so as to help a drowned person catch the survival pack.
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