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한국어 Translations » 【工业泵圈】 » [" JSONArray.of("매일 한 문제 泵设备 选择题",,","참가 시 보상을 받으세요 1财富；",D,

[" JSONArray.of("매일 한 문제 泵设备 选择题",,","참가 시 보상을 받으세요 1财富；",D,""모든 답변이 옳다면 보상를 받으세요

2019-03-27View Original

Thread Content

bk14.jpg选择题规则： 1、每题答案全部错误，积极参与奖励2财富；2、答案部分正确奖励5财富；答案全部正确奖励8财富；3、回答奖励每人限一次；4、每个回复限管理评分一次；5、回复后可见答案及解释；6、回复奖励在48小时内有效。 学*又拿奖，天天来逛逛 多项选择题： 影响离心泵口环径向间隙大小的因素有： A、介质温度；B、介质中是否含颗粒；C、口环直径大小；D、动静口环间材质是否容易咬合；E、介质粘度大小； 答案：ABCDE
Reply #22019-03-27
A、介质温度；B、介质中是否含颗粒；C、口环直径大小；D、动静口环间材质是否容易咬合；E、介质粘度大小；
Reply #32019-03-27
B、介质中是否含颗粒；C、口环直径大小；D、动静口环间材质是否容易咬合；E、介质粘度大小
Reply #42019-03-27
D为什么正确？口环非接触，和容易咬合没太大关系吧

Translated at 2026-08-09 21:41:25

Original: https://bbs.hcbbs.com/thread-2535228-1-1.html

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