The tradeoff between standardization and flexibility in system design for pavement maintenance and rehabilitation (M&R) management at network level is discussed.

探讨了网级路面养护维修管理系统设计过程中的标准化和灵活性问题。

youdao

On a recent trip to Houston, Munoz arrived at around 9 p. m. and went directly to a maintenance hangar to meet with a crew of mechanics.

他最近一次出差去休斯顿，晚上9点左右才到。到达机场后他直接去了维修机库看望那里的机械师们。

youdao

10 p. m. U. S. Eastern Time on Saturday, October 22, 2016, until 2 p. m. U. S. Eastern Time on Sunday, October 23, 2016, due to maintenance.

托福考试报名系统 在美国东部时间 2016年10月22日（周六）上午10点到10月23日（周日）下午2点暂停使用， 对给您造成的不便表示歉意 。

youdao

I know that many of you have probably read Zen and the Art of Motorcycle Maintenance, Robert M Pirsig Robert M. Pirsig.

很多人可能读过《万里任禅游》,作者。

哈佛公开课 - 幸福课课程节选

And new planes, like new cars, need less maintenance, one reason a plane Forbes tracked was able to take off at 6:40 a.m. in Nice and make nine flights across Europe before ending the day at 11:50 p.m. in Glasgow.

FORBES: Proving Papa Wrong