音频和视频设备一般使用这种传输类型。
一般情况下,在你使用手持设备时,你的时间很有限。
Generally, when you are using a mobile device, your time is limited.
一般使用包括软管和烧瓶在内的采样设备来采集水样,有时候,浮游生物是通过船尾的拖曳滤网收集的。
Sampling devices include hoses and flasks to collect water samples, and sometimes, plankton are collected on filters dragged through the water behind a ship.
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