3LE-10/8-G型压缩机一级排气压力太高,应立即停车检修,其原因是什么?
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外径千分尺按制造精度可分为0级和1级两种,其中0级精度()1级精度。
A. 高于
B. 低于
C. 相同
猪肉是我国膳食中钙、脂肪、维生素C、视黄醇和优质蛋白的重要来源。
A. 正确
B. 错误
泄水槽纵剖面布置,坡度变化不宜太多,当坡度由陡变缓时,应在变坡处用()连接,坡度由缓变陡时,应在变坡处用()连接。
A vessel is found to be seaworthy after a complaint in writing to the American Consul by the Chief and Second Mates. The cost of the survey is to be paid by the().
American Consul
B. Chief and Second Mates
C. Vessel's agent
D. vessel's owner