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Most of the heat by friction could be carried off by circulating water or Jet Stream if necessary.

必要时，可用循环水或喷气气流把摩擦产生的大部分热量带走。

Circulating water or jet stream can take off a majority of heat caused by friction ,if necessary.

必要时，可用循环水或喷气气流把摩擦产生的大部分热量带走。

In this case special measures are taken to keep a count of the cumulative DC offset, and to modify the codes if necessary to make the DC offset always tend back to zero.

在这种情况下，必须作特殊的测量来计算直流输出的累积误差，并且在必要时改变电压大小来让误差永远趋向零。

If necessary,I'll keep it until you come back.

假如有必要，我会把它留到你回来。

Project the edited curve, if necessary on the lateral surface.

项目编辑曲线，如果有必要的侧面。

Answer each question thoroughly and legibly, and attach additional sheets if necessary.

回答每个问题的彻底和阅，并附加额外的床单，如果必要的。

If necessary, they should have the levy of technical training.

必要时可给予相应有征对性的技术培训。

If necessary, you can lie down.

如果必要的话，你可以躺下。

Some sound cards have only one output is the Speaker or Line-Out card to rely on the decision of the jumper, default is often the Speaker, if necessary, adjust the jumpers have to unplug the sound card.

有的声卡只有一个输出端，是Line-Out还是Speaker要靠卡上的跳线决定，默认方式常常是Speaker，所以如果需要的话，还得拔下声卡调整跳线。

If necessary, change the attributes for Index Link to what you want.

如有必要，根据你的需要更改索引链接属性。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。