必要时

Change our attitueds when necessary, this is what I think that Helen Keller wanted to tell us all.

改变我们的attitueds必要时，这是我觉得海伦凯勒想告诉我们大家。

Henceforward he would be much more sparing with it and only use it when it was strictly necessary.

自此以后，他会节省使用它，只有在十分必要时才使用。

Inflation credibility has many benefits and the ability to pursue mildly heterodox policy when necessary may prove an important one.

央行在通胀方面的信誉有诸多好处，而在必要时推行适度的非正统政策，可能是其中重要的一种。

After improving the program, dots can be encoded automatically in the condition of removing dots, and can be encoded handily by human-computer dialogue if necessary. For speckle correlation method, speckle is arranged easily on model surface.

自动网格法在模型表面布置网格点容易，由于开挖或裂缝等原因去掉网格点，改进后的程序仍能自动编码，必要时可通过人机对话手工编码。

Methods Twenty-three cases of liver alveolar hydatid disease were examined by B-ultrasound,routine CT scanning and necessary enhanced scanning.

对23例肝泡球蚴病进行B型超声检查和普通CT扫描，必要时增强扫描。

City industrial and commercial bureau warns customer, careful choice meets easy target, whether does the attention offer address of detailed news report and connection telephone on new businessman network address, should call first when necessary the identity that tries to check operator; If use credit card to pay payment for goods, had better use special account, should not be inside card put too much ready money, choose COD way as far as possible; The attention saves concerned receipt, include " the electron trades receipt "; Save consumptive record, in case after the webpage is updated, nowhere inquires; Not by " low " puzzle, understanding place market is same the price of commodity or similar goods, the price on judgement net is reasonable.

市工商局提醒消费者，谨慎选择交易对象，注重生疏商家网址上是否提供具体通讯地址和联系电话，必要时应先打电话加以核实经营者的身份；假如使用信用卡支付货款，最好用专用账户，卡内不宜存太多现金，尽量选择货到付款方式；注重保存有关单据，包括"电子交易单据"；保存消费记录，以防网页更新后，无处查询；不要被"低价"迷惑，了解当地市场同一商品或类似商品的价格，判定网上售价是否合理。

I will if it's necessary .

必要时我会的。

Although this operation can be very time-consuming, and a new color of the image is better than color scanner get closer to the original image, but if necessary, this approach also makes the object's characteristics cannot be guaranteed.

虽然这种操作有时是很费时的，且新得图像的颜色不如彩色扫描仪得到的图像更贴近原物，但必要时，这种方法也常能使物体的特性得到保证。

If need be a thousand shall sternly immolate themselves for one.

必要时成千的人要为一个人而严肃地牺牲自己。

Humans have proven to be very resilient and able to improvise where necessary.

人类已经被证明是非常的有弹性的，并可以在必要时即兴发挥。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。