Critical components are waist high and can be easily reached by maintenance crews.

机背处有多个检修舱门，检修人员能方便的开启观察。

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These maintenance crews perform many of the same functions as do our mechanics, including refueling and repairing engines.

这些维修人员和我们机修师所作的工作有很多是相同的，包括加注燃油和维修引擎。

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The goal is to adjust valves ahead of time, systemwide, to minimize overflows and to deploy maintenance crews to specific locations early.

我们的目标是提前调整阀门，并量减少溢出和早一点将维护人员部署到特定地点。

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In Poland and the Czech Republic , traffic remains paralysed in many areas, although maintenance crews have managed to clear major motorways after snowdrifts eased.

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The current prototype is an e-bike, though future models may not include pedal assist, since swapping out batteries could be a logistical nightmare for maintenance crews.

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According to Yorkshire Water, in the past six months maintenance crews have attended 1, 700 jobs in Hull to remove blockages in local sewers, with 350 jobs carried out in February 2012 alone.

BBC: Fat-eating bacteria put in Hull sewers to remove blockages