空压机制气过程是:吸气 → 压缩 → 排气 因此当空压机吸气压缩排气后空压机中还有部分空气未完全排尽,这部分空气会参与空压机的第二次压缩。因此被称为 “ 二次压缩 ”
银行需要压缩规模,并确保一个大的安全缓冲,但是又不能引发二次衰退的危险。
Banks must shrink and have big safety buffers, but not if that risks a double-dip recession.
此模具拥有液压缸压缩、二次浇口注射,以及锥面与导柱的二次定位等特点,能够准确地保证塑料透镜的精度。
The mold employed fluidcylinder, secondary gate, secondary locating with pyramidal face and guide pillars, which ensured the precision of the plastic aspheric lens.
避免了二次距离压缩(SRC),同时提高了斜视下的成像效果。
Secondary Range Compressing (SRC) is avoided and imaging effect is improved remarkably in squint-looking use.
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