必要时

With the guide of the grammaticalization theory, the dissertation tries its best to combine form and meaning, static studies and dynamic ones, descriptiveness and illustrativeness.

研究中，我们以语法化理论为指导，尽可能做到形式和意义、静态和动态、描写和解释相结合；必要时考察"得"在汉语方言的情况，为"得"字发展史的研究提供更为全面的材料和证据。

Ensuring that they do not deteriorate and would detonate if necessary is difficult.

保证这些核武器既不变质又能在必要时引爆是件难事。

Don't worry, I will drag you if I have to.

别担心，必要时我会拉住你的。

The welding dreg in the pipe must be cleared up before the installation and operation of the

为了便于检查、保养和维护、更换流量计或清洗管路，必要时可安装旁通管路。

Your dynamic IP update client should handle updates automatically, monitoring your connection and updating if/when necessary.

您的动态IP更新客户端应处理自动更新，监测您的连接和更新，如果/在必要时。

Need be, at the same time an embosser.

必要时，在同一时间的压花机。

Necessary to consider surgery to prevent the occurrence of endocarditis.

必要时考虑手术，预防心内膜炎的发生。

I'll give you Glycerin Suppositoria to help you, or if necessary, I'll do enema for you.

需要的话，我会给您开塞露。必要时，我可以给您灌肠。

Ill give you Glycerin Suppositoria to help you, or if necessary, Ill do enema for you.

需要的话，我会给您开塞露。必要时，我可以给您灌肠。

When necessary, they also take a careful look at the patient's excrement.

必要时，他们还会查看病人的排泄物。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。