曲线

envelope of a family of curves

曲线族的包络

envelope curve 包络曲线 | envelope of a family of curves 曲线族的包络 | envelope of a family of surfaces 曲面族的包络

focal conic

焦二次曲线

focal circle 焦圆 | focal conic 焦二次曲线 | focal cubic 焦三次曲线

phase frequency curve

相频特性曲线

幅频特性曲线 zmplitude-frequency curve | 相频特性曲线 phase-frequency curve | 测量电桥 measurement bridge

size frequency curve

颗粒分布粒径曲线

size cumulative curve 粒度分布曲线 | size frequency curve 颗粒分布粒径曲线 | size grade of soil 土壤粒径度

hodograph transformation

速端曲线变换

hodograph 速端曲线 | hodograph transformation 速端曲线变换 | hodometer 路程表

hodograph method

速端曲线法

速端曲线变换|hodograph transformation | 速端曲线法|hodograph method | 算术|arithmetic

incurve;screwball

内曲线球

滑球 slider | 内曲线球 incurve;screwball | 外曲线球 outcurve;swerving pitch

indifference curve

等优曲线

通过讨论等优曲线(Indifference Curve)的移动,教科书中的"效用分析(Utility Analysis)"认为:由于商品价格的下降,实际收入会增加,需求曲线可能上升,也可能下降.

instantaneous voltage regulation characteristic

瞬时电压调整特性曲线

instantaneous velocity 瞬时速度 | instantaneous voltage regulation characteristic 瞬时电压调整特性曲线 | instantaneous voltage regulation characteristic 瞬时电压调整特性曲线

isochrone

等时线,瞬压曲线

isochore 等容线(在等体积下温度气压关系曲线) | isochrone 等时线,瞬压曲线 | isochronism 等时性

it is time to do：该做......了

bring oneself to do 使自己做...... | it is time to do 该做......了 | stay in touch 保持联系

sit for the examination：参加考试

837at the top of one's voice大声地 | 838sit for the examination参加考试 | 839costumen. 服装,剧装