工芸基礎知識（選択問題）20180528
Thread Content
工程基礎知識（選択問題）20180528 水ジェットポンプの効率が低いのは、 。 A. 機械効率が低い B. 容積効率が低い C. 水力効率が低い D. B+C ヒント：水噴射ポンプには原動機がなく、内部漏れもないため、機械効率と容積効率は存在しない。
ガンはCです
C. 水力効率が低い
**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections
Submit Request — Free ConsultationThis 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.