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3405121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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direction finding {= DF; DF-ing}	direction-finding indicator	direction finding penetration and approach procedures	direction finding receiver	direction-finding station
direction finding station	direction-finding system	direction finding system	direction-fixed axis	direction flag
direction float	direction flow	direction {Fr.}	direction gate	Direction gyro
Direction I.	direction illusion	direction image	direction, incidence	direction index
direction indicator	direction indicator (DI)	direction indicator{=DI}	direction indicator lamp	direction indicator light
direction indicator light, turn-signal light	direction information	direction injection	direction, in near forward	direction instrument
direct ionization	direct ionizing radiation	direction key	direction lever	direction light
direction line	Direction matrix	direction measurement	direction method	direction method of observation
direction method of triangulation adjustment	direction methods	direction navigation	direction; nonpolar	direction number
direction of action	direction of arrival	Direction of Arrival	direction-of-arrival{=DOA}	direction- of- arrival {=DOA}estimation
direction of arrival estimation	Direction of Arrival Estimation	direction of attack	direction of beam	direction of camera axis
direction of current	direction of curvature of isogyres	direction of cut	direction of delamination	direction of deposition