首页> 外国专利> Pumping means, which is intended to be towed by a trailing sand hopper hatches, and trailing sand swallows the funnel, which is provided with such pumping means

Pumping means, which is intended to be towed by a trailing sand hopper hatches, and trailing sand swallows the funnel, which is provided with such pumping means

机译:打算由尾随的沙斗舱口拖曳的泵送装置,尾随的沙吞入漏斗,漏斗装有这种泵送装置

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