Combined buoyancy and rescue devices 组合浮力及救生设备
buoyancy devices
浮力装置
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Tethered aerostat doesn't have dynamic devices, and it suspends on the upper space by buoyancy and cable 'pull.
系留气球不具有动力装置，靠浮力和缆绳的拉力作用悬浮于高空中。
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Buoyancy compensators provide buoyancy control for scuba divers by allowing them to inflate or deflate the devices.
浮力补给装置可以让给潜水者以充气或放气控制。
应用推荐
模块上移
模块下移
不移动