知識貝殼
知識貝殼
所屬欄目：水輪機與水泵專業英語
Crossflow turbines are equipped with self-aligning roller bearings which have severaladvantages, such as low rolling resistance and simple maintenance. The design of the bearinghousing prevents water leakage into bearings and contact of lubricants with wo ......（本文共 432 字 ） [閱讀本文] >>