短語詞組短語Effective gap length 馬鞍槽有傚長(zhǎng)度;馬effective path length 有傚光程長(zhǎng)度effective vibration length 有傚振動(dòng)距離effective track length 線路有傚長(zhǎng)effective constraint length 有傚制約長(zhǎng)度effective roller length 有傚滾柱長(zhǎng)度effective gage length 有傚隔距長(zhǎng)度effective heating length 有傚加熱長(zhǎng)度 返回 effective length