You can back test or paper trade for as long as you need before investing real money.
在你拿真金白银进行交易之前，你尽可以回溯测试或模拟交易。
Familiarity with recording and playing back test scripts and an understanding of the content of test scripts.
熟悉录制和回放测试脚本，并理解测试脚本的内容。
The back test result shows that the GARCH-EVT model can also better predict the foreign exchange risk like describing share risk.
后验测试的结果表明，与股市风险的研究结果一样，GARCH-EVT模型能较好地预测单一外汇风险。
Most vendors sell their forex robots backing up their claims about robots profitability with back test results or on demo accounts.
大多数厂商出售其外汇机器人备份机器人盈利索赔回测试结果或模拟账户。
Moreover, existing testing methods such as Loop-back test method (LTM) and Transverse test method (TTM) are not catered for testing modern routers with multi-ports.
此外，现有的测试方法，诸如“回绕测试法”(LTM)和“穿越测试法”(TTM)都不适合于测试具有多个端口的现代路由器。
This paper describes the principle and process about the local loop-back test on the FCC of MPC8260 microprocessor, including the setting of all the registers and the setup of FCC.
本文详细描述了MPC8260处理机芯片的FCC内环测试的原理和实现流程，并给出了所有的相关寄存器的设置。
In Lycidas, Milton looks back at the elder brother's theodicy, and it's almost as if he's attempting to test its validity.
在《黎西达斯》中，弥尔顿回顾了他哥哥的神正论，他似乎在尝试验证它的正确性。
I also remember getting my math test back and sometimes wondered why I never got consistent "a" s like the student sitting two seats away from me.
我也记得自己拿回了数学考试成绩，有时疑惑为什么我从未像和我隔着两个座位的同学那样一直得“A”呢？
If you have suspicions of food intolerances or allergies - try isolate the offending food, then back it up with a medical test.
如果你怀疑自己有厌食症或者食物过敏，尝试着远离这些让你讨厌的食物，然后进行医学检验。
You can then tie test cases back to those requirements to track coverage and status at the test plan level.
然后您可以将测试用例与这些需求联系起来，以追踪覆盖范围以及测试计划层次的状态。
You need a solution that lets you run tests more than once a day and puts your test suite back where it was before the build took three hours to complete.
您需要这样一种解决方案，使一天当中运行测试的次数超过一次，并使测试套件恢复到要用三个小时才能完成构建之前的水平。
You may also have noticed that when you play back your test scripts, the browser is still starting while the playback window is waiting for the first command to run.
您可能也注意到，在您重新运行您的测试脚本时，当这个重新运行窗口等待第一个命令运行时这个浏览器仍然在启动。
Various automation tools enable testers to record and play back a test script and then to reuse the same script at a later time.
各式各样的自动化工具使得测试员可以记录并测试一条记录，然后在稍后的时间内重复使用相同的脚本。
They were later invited back to the lab to retake the test while the scientists scanned their brain activity.
紧接着，他们被送到实验室重新开始测试，与此同时，科学家对他们的脑部活动进行扫描。
So as people in the back are answering these questions because they want to test my arm.
坐在后面的人回答我的问题，就是想要试试我的手臂力量。
For instance, if you are performing a database upgrade to your reporting database, you should back it up and test the restore.
例如，如果执行报告数据库的数据库升级，那么您应该备份数据库并测试还原。
That's pretty straightforward statistical analysis, if you believe in the reliability and validity of the assessment measure used, the Internet Addiction Test (I'll come back to this point).
这是最直接的数据分析，如果你相信所用的评估测量的准确性和有效性的话——网瘾测试(我还会回到这一观点上来的)。
Testers can record and play back on such applications and generate test scripts.
测试人员可以记录并作用于这样的应用程序上，从而产生测试脚本。
Use more than one method to back up your database, and test all backup and recovery scenarios carefully.
使用多种方法备份数据库，并仔细测试所有备份和恢复场景。
Half of the volunteers were given their charm back before the test started; the other half were told there was a problem with the camera equipment and they would get it back later.
一半的志愿者在实验前拿回了他们的幸运符；另一半志愿者则被告知因相机故障稍后才能取回他们的幸运符。
Figure 2 shows the IOPS that were measured on both the front end and back end during the same test run.
图2显示了在同一个测试过程中在前端和后台所测试到的iops值。
Back inside the test class, we define the MockTransaction class as a member class, as shown in Listing 5.
后退到测试类内部，我们将mocktransaction类定义为成员类，如清单5中所示。
Figure 4 shows the IOPS that were measured on both the front end and back end during this test run.
图4显示在测试的前端和后台所测得的iops值。
Migrate the changes from the test database (GSDBDEV) back to the production database (GSDB).
将测试数据库(GSDBDEV)的修改移植到生产数据库(GSDB)。
I could stop coding and despair, or I could write some code without a test and come back to it later.
我可能暂停编码，陷入困境，或者在没有测试的情形下，编写一些代码，到稍后再编写测试。
If I find I can't write a test first after trying to do so, I back into the test.
如果发现在尝试先编写测试之后，仍不能先编写测试，那么回到测试中来。
But when you play back the performance test to generate load with many simulated users, you may not want the same URLs and request parameters played back.
但是当您回放性能测试来模拟用户去产生装载时，您可能不希望使用相同的URL和请求参数来回放。
If for example you switch workspaces frequently, and forgot to remove projects from previous workspaces, you could rest the Unit Test Environment back to its initial state.
例如，如果您经常切换工作区，并且忘了从先前的工作区中删除项目，您可以将单元测试环境恢复到初始状态。
In this case the tree looks different: you start with test cases, and then trace back from scenarios and use cases.
在此种情况下，追踪树看起来会有不同：你从测试用例开始，然后追踪场景和用例。
If you find that you are not exercising enough of the code, then go back and add additional tests to your test suite.
如果你发现测试没有覆盖足够的代码，那么回到以前的步骤进行更多的测试。
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