The submersible motor enclosure including frame, end brackets, flanges and cap assembly shall be constructed of close-grained cast iron, ASTM A-48, Class 30 or better.
潜水电机壳体，包括机架，尾轴承架，法兰和罩盖总装，必须采用符合美国材料试验协会ASTM A - 48类别30标准的、密实的铸铁或更好的材料制造。
2
The frame, which is formed by buttress, breast wall and side wall bear the horizontal loads, and group pile cap bears the resultant force of vertical and horizontal loads.
由扶壁、耳墙、胸墙组成的框架抵抗水平荷载，而以承台、桩基抵抗垂直及水平荷载的共同作用力。
3
The results provide theory basis for the optimal design of section parameters of the cap - shape frame and the revision of relevant standard.