虽然在建筑质量的坚固性和封堵的严密性上不及永久密闭，但在矿井通风中若无法满足运输及时间的要求时，临时密闭可发挥其自身的独特作用。
Although the airtight is not as solid and tight as permanent airtight, the temporary airtight will bring its unique use when mine ventilation cannot satisfy the time requirement.
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.
根据徐女士的说法，她的公司对客户的需求反映及时，同时也避免了因运输延误和海关官僚作风而导致的障碍。
According to ms Xu, her company can now react more rapidly to customer design requests, while cutting out hold-ups due to transport delays and customs bureaucracy.
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