不必要的

On the contrary, renormalization is absolutely necessary in an effective field theory.

我并不是否认有效理论下对重整化不那么必要的讨论。

But this custom was not peculiar or to the Germans, as we may see from the Celtic eirig, and, as Riviere has pointed out, there is no need to have recourse to this explanation.

不过，这种习俗是不奇怪的，还是向德国人，因为我们可能会看到从凯尔特eirig ，而且，正如维埃指出，有没有必要求助於这个解释。

We must not allow our necessary scepticism to degenerate into cynicism.

我们不应让必要的怀疑态度滑向玩世不恭。

Sebastian - If it's keeping you up, it is.

如果这是让你睡不着的原因，那么就有必要谈。

I don't even think the silicone spray was needed.

我什至不认为硅喷雾是必要的。

Dealing with rust spots, smirch is mainly detergent rust, but rust mostly acidic detergent, so it is not acid-resistant stone, such as marble, dolomite and quality, should be tested before use, if necessary, add water rare.

处理锈斑、污斑主要是除锈去污剂，但由于除锈去污剂多属于酸性，所以对不耐酸的石材如大理石、白云石质，使用前应进行试验，必要时加水稀。

There is also a capability of having an on/off switch, but I don t believe that will be necessary.

也有一种能力，有一个On / Off开关，但我不相信将是必要的。

You see no need to take unnecessary risks.

你认为不需没有必要的冒险。

He never strained when hedidn't teel it necessary .

不到必要的时候，他从来不肯使劲。

This is not a pleasant argument, I find it necessary to leave temporarily for some time.

发生了这样不愉快的争吵之后，我觉得有必要暂时离开一段时间。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了