落后: fall behind; lag behind曲线: curve; curved line前后曲线: anterioposterior curve滞后曲线: hypsochromic shift; hysteresis curve; lag curve; lagcurve弹性滞后曲线: elastic hysteresis loop静态滞后曲线: static hysteresis curve滞后曲线记录器: hysteresis curve recorder; hysteresis loop recorder后曲: arching; back bend; hollowing of back; sagging hollowing of the back落后: 1.(落在后面) fall behind; lag behind 落后于时代 behind the times; 谦虚谨慎, 永不落后 ! be modest and prudent, never lag behind! 我的思想老落后于现实。 my thinking always lags behind reality. 上半场主队落后一分。 the home team trailed by one point at half time.2.(不先进) backward 技术落后 backward in technique; 改变山区落后面貌 put an end to the backwardness of the mountainous areas; 落后窗 lag window; 落后地区 backward areas; less developed areas; 落后分子 backward element; 落后角 deviation angle; lag angle; 落后特性 lag characteristic后曲度: backward curvature后曲拐: after crank婚后曲: epithalamion后曲柄轴: after crank shaft后曲轮叶: backward curved vane后曲叶片: back curved vane; backward curve blade; backward curved vane后曲锢囚: bent-back occlusion后曲锢囚锋: recurved occlusion不落后: keeup; keeuwith sb/sth落后,滞后: lag落后,拖拉…: be behind in落后;拖欠: fall behind落后班: backward class落后兵: backward pawn落后潮: lagging of tide落后窗: lag window