Testing is an integral part of Rails development and the previous chapters do a credible job of covering basic testing techniques with Rails.

测试是 Rails 开发的一个集成部分，前面的章节进行了一个可信工作，涵盖了 Rails 的基本测试技术。

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The system has stable and credible performance by testing.

该系统经实际测试，工作稳定、性能可靠。

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Among those nondestructive testing methods for wire ropes, the electromagnetic testing method is recognized as the most credible one.

电磁检测法是目前公认的最可靠的钢丝绳检测方法。

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In an important analysis published recently by the Center for Security Policy, Vice Admiral Robert Monroe USN (Ret.), a former director of the Defense Nuclear Agency, argues persuasively that if we are to have any hope of preventing proliferation in the future, the United States must maintain a credible nuclear deterrent - and undertake the associated testing, developmental and industrial actions.

CENTERFORSECURITYPOLICY: The terror next time

One such challenge was whether the United States, with a military strategy based on credible nuclear deterrence, could maintain a highly reliable stockpile of nuclear weapons indefinitely without testing.

CENTERFORSECURITYPOLICY: Center for Security Policy | Fumble on the Test Ban Treaty By Richard Burt The Washington Post, 18 October 1999