Therefore, during production testing, you recheck the improvements to security that were made in preproduction.

因此，在生产测试期间，要重新检查在生产前做出的安全性改进。

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For development work, a spectrum analyzer is indispensable. But for production testing, it offers more measurement power (and expense) than needed.

对于研发工作，频谱仪是不可缺少的，但对于生产测试，其测量能力远远超出了需要，造价也更高。

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The production testing and flowsheet investigation have shown that better recovery and grade of concentrate can be achieved with the application of the new technology in Dongshan Concentrator.

生产调试和流程考查表明，东山选矿厂采用阶段磨选工艺可获得精矿品位和回收率双提高的较好指标。

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To achieve this, extensive pre-production testing took place using the world's most advanced SSD testing facilities.

ENGADGET: Plextor M5 Pro bulges SSD envelope with 94K IOPS and 540MB/s

In pre-production testing of the Modbook Pro, Modbook Inc. found that solid-state drive options offered a number of clear advantages over mechanical drives.

ENGADGET: Modbook Pro to launch with SSD storage, up for pre-order October 3rd

This has been achieved through extensive development, strict quality control, and a stringent pre-production testing requirement of 400 drives passing 500 hours of intensive tests with zero errors.

ENGADGET: Plextor trots out M5M series mSATA drives at CES