单词	elliptical gear
释义	elliptical gear 椭圆齿轮
随便看	particle momentum particle motion particle moulding particle movement particle multiplet particle multiplier particle number concentration particle number conservation law particle number density particle-number operator particle of fluid particle of speech particle optics particle orbit particle orbit theory particle or chip board particle organic material (pom) particle orientation particle orientation process particle-oriented paper particle packing particle packing density particle pair production particle pair production and annihilation particle particle correlation 操觚染翰操赢致奇操身行世擎擎1 擎2 擎3 擎天之柱擎天架海擏 44336 44337 44338 44339 44340 44341 44342 44343 44344 44345