知識貝殼
知識貝殼
所屬欄目：水輪機與水泵專業英語
Runner is a cylindrical disk mounted on a shaft on the periphery of which a number ofbuckets are fixed equally spaced, as shown in Fig.2.3.The blades, also called buckets, look like twin hemi-ellipsoided cups joined in the middleby means of a ridge. This ......（本文共 1450 字 , 1 張圖） [閱讀本文] >>