尽管公司对所有的包裹负责，但是对于特别贵重的物品，公司还是使用密封的容器运输。
In spite of the fact that the company is responsible for all of its mail, especially valuable shipments are delivered in closed containers.
密封刃口在储存、运输和装配过程中受到损坏。
Seal the blade in the storage, transportation and assembly process in damaged.
水泥和混凝土运输应采用密封罐车。
Cement and concrete shall be transported in hermetically sealed tank car.
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