This paper mainly describes the amplitude and phase errors caused by zero-order holder and the error caused by finite word length of D/A, and computer simulation test of D/A error is also introuced.

针对零阶保持器引起的幅度误差和相位误差，以及D/A转换器有限字长引起的误差进行了较为详细的分析，并进行了D/A误差仿真试验。

youdao

The synthesized test system for underwater weapon system adopts a modularized structure with signal generator, A/D converter, D/A converter, real-time clock, printer and LCD screen.

水下武器系统综合检测系统采用模块化设计思想，由信号发生器模块、A/D模块、D/A模块、实时时钟模块、液晶及打印机模块等组成。

youdao

For a very practical reason: with INHERITS(B, D), I kept forgetting which way the test works — does it test whether B inherits D or vice versa?

为了一个实际的原因：使用INHERITS（B， D），我会经常忘记检测的运作方式——它测试的是B派生自D呢，还是D派生自B？

youdao

This week: We test our geography skills at the National Geographic Bee in Washington,D.C.

VOA: special.2009.05.29

"What we showed is that for students who are highly test-anxious, who'd done our writing intervention, all of a sudden there was no relationship between test anxiety and performance.

VOA: special.2011.01.20

"I could tell from his reaction that Andrew knew he had picked me out - I suppose if I'd taken it he'd have been the first Test batsman to be caught out by his dad!"

BBC: Flintoff dropped by his dad

In December, the Taxi and Limousine Commission OK'd a yearlong test.

WSJ: Judge halts NYC taxi e-hailing a day after launch

If you held out the prospect of getting an A on the test, we'd study longer.

WSJ: 'Drive' Excerpt by Daniel H. Pink