They often deliver required parts just-in-time, eliminating the need for warehousing – handling and storage in expensive warehouses.

他们通常会及时交付所需的零件，从而消除了仓储的需要——在昂贵的仓库中处理和存储。

Advocacy organizations like the NRA emphasized the need for safe handling and storage of firearms, and offered training programs intended to make ownership safer.

全国步枪协会等拥枪组织强调，需要安全地持有和存放枪支，并提供培训项目，旨在提高持枪安全性。

Mercury is a fairly hazardous material and it's been subject to very strict handling and storage rules for a long time.

汞是一种相当危险的材料， 长期以来一直受到非常严格的处理和储存规则的约束。