质量纪录之保存时限应有规定与记录。
Retention times of quality records shall be established and recorded.
探讨战备手术包存放在自然环境下的保存时限。
Objective: to probe into the conserving time of combat operating instrument set in natural environment.
本实验通过光镜和电镜观察探讨了采用不灌洗法犬肾上腺的低温保存时限。
In the experiment, we explored the preservable period of the canine adrenal in low temperature without perfusion by optical microscope and electron microscope.
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