纵向采用50 KG导轨，四面经精密磨床加工。直线度好。
Longitudinal guides with the level of 50kg by precision grinding have good straightness.
钢材经精密温锻后，可以显著提高其综合机械性能，减少加工工序。
The distinct advantages of precision warm forged steel are the improvement of mechanical properties and the simplification of fabricating process.
某厂用AZ 91d镁铝合金生产的手提计算机机壳，经精密铸造而成。
A kind of pocket computer casing, made of AZ91D alloy, is manufactured by precision casting.
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