科学时代-面向大众传播科学知识、科学方法、科学精神和科学思想的科学普及平台。

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

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track layout	track left	track length	track length	track length method
trackless pit	trackless transport	track of electron	track out	trackpad
track record	track record	track registration technique	track relay	track resistance
track return circuit	track right	track scale	track seeking	track segment
track segment method	track sensitive target	track sensitive target（TST）	track sensitive volume	track shot
track shot	track shrinkage	track sled	track station	track station
track structure	track structure	track switch	track taper	track up
trackway	trackway	track-while-scan	track-while-scan--track-while-scan（TWS）	track-while-scan（TWS）
tract	tract	tract	tract	tract
tract	tractability	Tractarianism	Tractarian Movement	Tractatus Theologico-Politicus
tract house	traction	traction	traction	traction
traction	traction boiler	traction condition characteristic test	traction current	traction dynamometer