研究者会给你一个收集箱，里面有九个小瓶，瓶内已事先装好了饼干屑。
They supply a collection kit that comes with nine vials pre-loaded with cookie crumbs.
变压器在拆箱后，在投入运行前的大楼施工期间，要用塑料薄膜外裹保护，防潮和防止灰尘甚至金属屑的可能进入。
Wrap the transformer after unpacking with plastic film for protection from moisture and possible entry of metal fillings during the building construction before the transformer is to be used.
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