1.
inspect and repair only as needed
仅在必需时进行检修
2.
Selected checks will only run if your publication requires them.
所选检查条件仅在出版物需要它们时才会运行。
3.
Synchronize my device continuously when information needs updating.
持续地检查需要更新的信息，并在必要时进行同步处理。
4.
The boat is lying up for repairs.
船正在船坞里进行检修。
5.
Congress conducts oversight hearings and, when necessary, rewrites enabling statutes;
国会进行监督听证并在必要时修改授权法案。
6.
To examine or go over carefully for needed repairs.
解体检修，大修为进行必要的修理而仔细地检查拆修
7.
"In case of difficulty, the cranking motor should be removed from the engine and overhauled."
故障严重时,必须把起动电机从发动机上拆下进行彻底检修。
8.
and inspect and repair any equipment that needs work.
检查并维修所有需要进行的设备。
9.
However, since the dose rate is steadily decreasing during the exposure, appropriate allowance for this must be made.
可是，由于在辐照过程中剂量率逐步下降，所以必需进行适当的修正。
10.
"Thus, it is not necessary to replace all pistons when only part of the cylinders require service."
这样,当气缸仅需要部分维修时,就不必更换全部活塞。
11.
There are certain lubrication-system jobs that are done more or less automatically when an engine is repaired.
在检修发动机时,或多或少可对润滑系进行一些维修保养。
12.
The notice in writing need not be given if the state of the goods has,at the time of their rec eipt, been the subject of joint survey orinspection.
如在收货时已对货物的状况进行联合检验或检查，便无需书面通知。
13.
Accurate diagnosis and management requires a thorough history, physical examination, and, when indicated, laboratory tests.
作出准确诊断需要彻底了解病史、进行体格检查，必要时进行实验室化验。
14.
The second stage is now in progress, as the Government introduces a series of bills that make the necessary textual amendments to ordinances.
第二阶段的修改工作正在进行，政府提出一系列法案，对条例文本做出必需的修订。
15.
and hold it while the astronauts make the necessary repairs.
这时宇航员便进行必要的修复工作。
16.
If you do it yourself, it should take only about half an hour.
如自行处理，仅需半小时。
17.
Items will degrade with use and over time, requiring a craftsman to repair them.
物品在过度或者过时使用后会降级，这就需要工匠进行修补。
18.
Job requires work on nights, weekends, and holidays to perform plant maintenance during production shutdown periods.
该工作需要在夜间,周末、假日非生产时间到工厂进行维修工作.