Though the world boasts the 50-year's history of study on vehicle steering wheel shimmy, and many valuable articles have been published meanwhile, the problem of shimmy is still not solved thoroughly.
虽然国内外对摆振现象的研究已有近五十年的历史，并发表了许多有价值的文章，但是摆振问题仍没有彻底解决。
Even though the valve is not thoroughly cleaned after sampling, the sterile state of the valve body can still be well ensured.
即便取样后对阀的清洁处理不到位，也能很好的保证阀体的无菌状态。
Even though the valve is not thoroughly cleaned after sampling, the sterile state of the valve body can still be well ensured.
即便取样后对阀的清洁处理不到位，也能很好的保证阀体的无菌状态。
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