结果表明，正丁醇-盐酸法更有利于严格质量控制。
As a result, the vanillin - (hydrochloric) acid method was favourable to meet the strict requirement of quality control.
我们制造焊膏所使用的焊锡粉是在惰性气体和严格质量控制之下制成的。
All solder powders that are used for our paste manufacturing are made under inert atmosphere and under tight quality control program.
这一日本制造商一直将严格的质量控制引为自豪，但最近却受到一系列质量问题的打击。
The Japanese manufacturer has long prided itself on rigorous safety controls but has been beset by a series of quality issues.
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