[". Качели有关 E. Качели не относится F

2018-05-07View Original

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本帖最后由绿莲花于 2018-5-7 11:36 编辑参与：奖1财富；回答正确：奖3财富；注：此贴有效时间48小时。单选题：离心泵的有效气蚀余量(NPSH)与吸入系统有关，而与泵本身无关。而离心泵的必须气蚀余量(NPSH)与吸入系统无关，而与泵本身(　　)。 A、设计无关 B、设计有关 C、安装位置有关 D、制造无关答案： B 您的参与，就是对我们工作的最大的支持。送人玫瑰，手留余香。https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif 注：两天后答案自动公布。 “我的装置我的家“ 大型原创照片分享活动（第二期） https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1868167&extra=page%3D1 【一问一答】催化焦化重整油品调和版2017~2018年汇总贴~~持续更新中 https://bbs.hcbbs.com/thread-1826018-1-1.html 【每日一题】催化焦化重整油品调和版2017~2018年汇总贴~~持续更新中 https://bbs.hcbbs.com/thread-1811219-1-1.html

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[". Качели有关 E. Качели не относится F

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