需要时

Air conditioning, desk, two direct-dial phones with voicemail, 14-inch satellite TV with pay movies and complimentary TV Internet connection.

入住时需要出示身份证和信用卡或者交付保证金，以便于支付其他杂项的费用。

This is when i4target.exe in command-line mode is needed: 1/ Open a Command Prompt window and directory to your CDROM drive.

这是在命令行模式是i4target.exe时所需要的。 1 /打开一个命令提示符窗口和目录到你的光盘驱动器。

As we have setup a connection, we also need to disconnect when

正如我们已经建立了连接，我们还需要断开时

Discretionary Account is an arrangement by which the holder of an account gives written power of attorney to someone else,often a broker,to buy and sell without prior approval of the holder;often referred to as a "managed account"or"controlled account".

全权委托一种委托形式，账户的所有人将交易权委托给其他人，受托人在交易时不需要事先征得账户所有人的同意。

When I needed disinfect the nursing bottles, I would come here to use the microwave oven.

当我需要给奶瓶消毒的时侯，就会到这里用微波炉消毒。

The second one is a method based on Independent Component Analysis with reference signal. Unlike the former, this method can separate the estimating value of the watermark signal separately by using the information provided by the reference signal, so the computing complexity of the first method can be greatly decreased, at the same time, the shortcomings of the ICA based method, such as disorderliness and randomicity can be overcome.

第二种方法以带参考信号的独立分量分析算法为基础，通过参考信号提供的信息直接提取所需要的水印信号估计值，克服了ICA算法在分离各路源信号时所具有的无序性和任意性的缺点，降低了第一种方法的运算复杂度。

To calculate the pH value of a weak acid with a particular concentration, we have to know the dissociation constant of the weak acid.

P53 计算一定浓度的弱酸的pH值时，需要知道弱酸的离解常数。

All one has to do is to fulfill one's well-known-to-all, prescribed, objectively verifiable obligations, which, by the way, include providing different opinions and dissuasion when appropriate, and one can rest assured that the other party owes one the fulfilling of its obligations.

这些都不用担忧，我只需要履行我众所皆知的、规定的、能够客观证实的义务和责任，而这些义务和责任也包括了适当时提供不同意见或劝谏，我就可以很放心，对方也必然会反过来履行对我的义务和责任。

When blanket is designed, some necessary data, including tritium breeding ratio, irradiation damage ratio, intensity of activation radiation, magnet and thickness of shield, can be get through neutronics calculation. All of that must base on heat load and neutron power flux of first wall and divertor plate. So, the preparative calculation is prformed for that.

在设计包层时，需要进行中子学计算得到氚增殖率、辐射损伤率、活化放射性强度、磁体及其屏蔽厚度的计算、核加热产生率和冷却系统设计和安排的必要数据，而这一切都必须先知道第一壁和偏滤器靶板的中子壁负荷和热负荷；为此作了必要的先行准备计算工作。

Constructive approaches to divining the potential usefulness of traditional therapies are to be welcomed.

虽然我们需要一些建设性的方案来评价传统医学的疗效，但用一个全新的，根本没有经过临床检测的技术来评估传统中医药的疗效无疑是不妥当的，尤其当我们考虑到当前伪科学在医学领域的泛滥时更是如此。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷