HCBBS Forum (Français)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

["

2019-06-14View Original

Thread Content

bk14.jpg答题及管理规则:1、每题答案全部错误,积极参与奖励2财富,非答案类回复不予奖励;2、答案部分(答对一道)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 1、离心泵中的机械损失、容积损失和水力损失,合计一起统称为泵的总效率( ); 2、在60Hz的电网频率下,2极Y型电机的同步转速为3600r/min( )。 答案:1、错误; 2、正确。
Reply #22019-06-14
1、错误; 2、正确;

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.