他说承包商需要了解的是：用轻质材料能节省运输、劳动力和设备费用，以及潜在的维护费。
What contractors need to understand, he said, is that there are transportation, labor and equipment savings from using lighter components, and potential maintenance savings, too.
同样的，及时提供像直升机和重型运输设备这样的关键物资也是很必要的。
Likewise, timely provision of key assets such as helicopters and heavy transport equipment is essential.
这些要求的目的是在储存，搬运和运输过程中确保设备的质量。
The purpose of these requirements is to preserve the quality of equipment during storage.
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