quantity bill工程量清单quantityn.量；数量；大量quantity of soil eonservation土壤保持量quantity of staff and faculty教职工数量quantity of material received收入量Quantity Desired as Requested望按申请之数量quantity flexibility contract数量柔性契约quantity restriction of trade交易量限制quantity of alkali consumption碱消耗量Quantity tissue velocity image定量组织速度成像quantity of published articles发文量quantity of dry combustion gas干燃烧煤气量

1. Paint is cheaper when you buy in quantity.
   油漆大量购买较便宜。
2. I can ask him if he can give us a better price if we buy in quantity.
   如果我们要大量购买的话，我可以问他看他能不能给我们比较好的价格。