知识贝壳
知识贝壳
所属栏目：水轮机与水泵专业英语
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 ） [阅读本文] >>