Castframe and oversize LF voice coils mean sustained high power output capacity and minimal power compression.
铸造框架和特大型低频声音线圈意味着持续的高功率输出容量和最低的压缩。
2
James Bogardus (1800-1874) built the pioneering Cast Iron Building, New York (1848), with a rigid iron frame providing the main support for upper-floor and roof loads.
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。