虽然采用了涂料保护，闸门的检修保养期也只有3 ~ 4年。
Though coating paint had been used to prevent the corrosion, the period of maintenance only lasted 3-4 years.
在关于笔记本电脑保养的第一期连载中，一些来自纽约周边的维修点与我们分享了一些能延长你的本本使用寿命的小诀窍。
In our first installment of laptop health tips from the experts, we Shared tips and tricks from computer repair shops around New York City on how to help your laptop live a little longer.
有几项研究结果称，捕集上述排放气体可采取安装设备、维护保养等装置，其收回期至少为24个月。
Several studies show that maintaining and installing equipment to capture the emissions pays for itself within 24 months.
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