A government study recommended a national highway system of 33,920 miles, and Congress passed the Federal-Aid Highway Act of 1944, which called for strict, centrally-controlled design criteria.
一项政府研究建议建设一个33,920英里的全国公路系统,国会通过了1944年的《联邦援助公路法案》,该法案要求制定严格的、集中管控的设计标准。
To introduce the design method, composition and main study content of "Aid-decision System of Heavy Machine Gun System of Approval Test".
介绍了重机枪系统定型试验辅助决策系统的设计方法、组成和主要研究内容;
Some new experiments with the aid of computer are designed to study the relationship between color channel and figure channel in human visual system.
利用计算机设计新的实验,研究了人类视觉系统的颜色、形状通道和识别颜色的时间。
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