specified quantity meaning in English

规定数量

Collection of a specified quantity of snack foods to clear customs
收集到指定数量的零食才能过关。
Purchasing contracts for materials must specify quantities of materials to be printed and stored
物料的购买合同必须指定印刷和贮存的物料数量。
The commissioner may in writing exempt any person from the prohibition in section 13 in respect of the possession of specified arms and any specified quantity of ammunition therefore , or in respect of specified ammunition , or in respect of specified arms and ammunition
处长可以书面就管有指明的枪械和管有任何供该等枪械使用的指明数量弹药，或就管有指明的弹药，或就管有指明的枪械及弹药，豁免任何人受第13条的禁止规限；