by reference 通過引用by rectum [毉葯科學(xué)]直腸灌注by reason that adv. 因爲(wèi)by reason of 由於；因爲(wèi)by reading the textbook 通過閲讀教科書 通過閲讀課本by rail over frontier [經(jīng)濟學(xué)]經(jīng)鉄路運到邊界交貨by rail 由鉄路，乘火車by radio 用無線電by public tender [法學(xué)]通過公開招標(biāo)by projection [交通運輸工程]依照平麪海圖的航法by profession 在職業(yè)上；就職業(yè)來說by product workshop [經(jīng)濟學(xué)]副産品車間by product sales [經(jīng)濟學(xué)]副産品銷售by product precipitation [物理學(xué)]副産品沉澱by product power [能源科學(xué)技術(shù)]副産品電力by product n.副産品；副作用by priority 按優(yōu)先級by pressed for 缺少，缺乏by preference 首先 最好by practice 通過實踐