... 试制工作 development work; 试制小组 trial-production group; 试制样机 advanced development ...
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The average daily milk production capacities of the trial group fed on diet with kelp meal and the control group were 18.
奶牛日粮中添加海带粉的试验组，与不添加的对照组，两组奶牛日均产乳量分别为18。
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