We're still a long way off from useful molecule-size machinery, but the work is an impressive demonstration of what some carefully designed chemistry can do.
我们离多用途分子尺寸规模的机械仍有很远的路程,可是该工作是精细化学工程设计的极佳展示。
Each element should not exceed a size that could be handled by two people without assistance of heavy machinery.
每种构件的大小不能超过两个人不使用重型机器时的处理能力。
Optimizing and analyzing the structural size from the Angle of the kinematics of machinery.
从机械运动学的角度进行结构尺寸的优化、分析。
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