A new type of low alloyed high speed steel with high performance, D601, was studied.
本文研究了一种新型低合金高性能高速钢d 601，其各项性能接近或略超过通用高速钢m 2。
With a low speed system fan, the system has stable performance with minimal noise.
带有低速系统风扇，该系统具有最小噪声的稳定性能。
With a low speed system fan, the system has stable performance with minimal noise.
带有低速系统风扇，该系统具有最小噪声的稳定性能。
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