Most states, for instance, have a blood test requirement, but a few do not.

例如，大多数州都有验血的要求，但也有一些州没有。

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The experiment results show that the optimal focus can be acquired and the detective method satisfies the test requirement.

试验结果表明，所设计的系统能够依据图像判断最优焦面位置，满足设计和测试要求。

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For the test requirement of precision agriculture, differential systems of GPS position were adopted to increase the position accuracy of GPS system.

为了精准农业技术示范试验需要，采用了GPS定位差分系统，以提高GPS系统定位精度。

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It took another three years to figure out a way to grow the virus in a test tube, a requirement for testing an antiviral.

FORBES: Viral Vertigo

They also proposed a separate requirement that hospitals clearly communicate test results to parents before children are discharged.

WSJ: NY plans new hospital rules for treating sepsis

The sheer scale of Spain's borrowing requirement will be a major test of the reawakened investor appetite for Spanish debt.

CNN: Spain escapes aid but doubts remain