如果能成功地把生产计划与控制（PPC）设计成具有匹配能力的调节回路，则可以持续改进企业的后勤保障效率。
The logistical efficiency of an enterprise can be continually improved if the Production Planning and Control(PPC) can be designed as an adaptive control loop.
合唱与工程活动都体现了人类的建构能力——设计宏大计划，并将其清楚无误地传达至他人。
Both choral singing and engineering are examples of the architectonic ability of man: of his power to make a large plan and to convey it clearly to others.
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