必要时

We can put up ten people for the night at a pinch.

必要时我们可以留宿十个人。

We really need three but we could manage with two at a pinch.

我们确实需要三个，但必要时两个也可以应付。

There was luxurious turning-room for one; and at a pinch the thing might serve for two.

译文「有一间豪华的单人房，必要时，还可以两个人用。

We can get six people round this table at a pinch.

必要时，这张桌子可以坐六个人。

Eg: We can put up ten people for the night at a pinch.

必要时我们可以留10个人留宿。

My generation can even do Twitter, at a pinch.

必要时，我们这代人甚至能上Twitter。

Useableness recycled water or jet wash could take a majority of fricactive heat off at a pinch.

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。

You must use a recovery program that can, when necessary, retrieve your data from disks that you made with "drag and drop" DVD authoring software.

你必须使用回收程序，可在必要时，取出你的数据从磁盘，你所作的"拖放"的dvd编辑软件。

But the other application that are related to blog authoring, do you think that they are necessary when we use Live Writer?

但是，其他应用程序，相关的博客创作，你认为他们有必要时，我们使用Live作家？

International SOS will also assist the Member by arranging for bail bond on behalf of the Member. The provision of financial guarantee

国际SOS将协助使用者必要时安排保释金，国际SOS将会通过用户的信用卡或亲属担保金取得资金后提供财务担保。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。