Renewal of qualification may be made for any process by welding a single test coupon of either plate or pipe, and by testing of that coupon as required by QW-301 and QW-302.
如需重新获得资质，则该焊工需要遵照QW - 301和QW - 302的要求，在一个板材附件试片，或一个管材附件试片上，进行焊接试验。
Ultimately, we carried on renewal, enrichment, test to the website, and made the website have a brand-new look.
最后我们对网站内容进行更新、充实、测试，使网站焕然一新。
This in turn indicates that to optimize testing conditions test medium renewal should if possible be conducted if running the full life cycle study.
这转而表明，如果是在进行完整生命周期研究，想要优化测试条件的话，最好更新测试媒介。
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