短語詞組短語yield d per unit 單産yield of per unit area 單位土地上的年yield per unit area 單位麪積産量;畝産fictitious yield per unit 虛擬單位産量yield per unit recruitment 單位補充漁獲量yield per unit gear 單位漁具産量yield per unit of gear 單位漁具産量fictitious yield per unit area 虛擬單位産量the yield per unit area 單位麪積産量 返回 yield per unit