Subjective inquiry was used to investigated cleaning mode, smell and choice of attendants on trains with directly drained lavatory or sealed lavatory.
采用主观询问的方法对列车直排式和密闭式厕所的清扫方式，是否有臭味，以及对厕所排泄方式的选择进行了调查。
This paper makes a description of the technological qualities of rice, the technologies of its cleaning, husking, husk-separating, milling and grading, and its handling mode and equipment in USSR.
对苏联稻谷的工艺品质、稻谷清理工艺、砻谷及砻厂物分离工艺、碾米工艺、白米分级工艺、输送方式和设备等进行了阐述。
The unique structure of smooth and depth disc coulter combined with horizontal disc cleaning residues for the mode is first researched in China.
为此，在国内首次研发了适合于这种模式的前限深圆盘破茬后水平圆盘清垄的独特结构。
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