MPACT is a pneumatic system that generates the high-pressure, compressed air required to jettison weapons from various military aircraft.
MPACT是一种气动系统，能产生高压，它能压缩空气，用于从各种军用飞机上投放武器。
The problem, he explained, was that an acceptable new process has yet to be put in place, and until one is, it would be impractical to jettison the old system.
问题在于，除非旧体系已经到了山穷水尽的地步，新的体系是不会得到应用的。
The problem, he explained, was that an acceptable new process has yet to be put in place, and until one is, it would be impractical to jettison the old system.
问题在于，除非旧体系已经到了山穷水尽的地步，新的体系是不会得到应用的。
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