grade storage management 分级存储管理
If you choose to prepare your own containers of water, you should buy air-tight, food-grade water storage containers from surplus or camping supply stores.
如果你准备用自己的容器装水，你应该从军用品或者野营用品专门店购买那种不漏气的、专门储存食品的盛水容器。
There is also a refillable potable water storage tank below grade that's also manually pumped.
还有一种可饮用水也是储存于手动泵。
DEAR M. c. : You can find food-grade plastic and quality storage containers at thrift stores and garage sales.
亲爱的古典文学硕士：你可以在廉价商店和车库里找到符合食物储存标准、质量合格的塑料罐。
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