... trial-and-error solution 尝试解法 trial-manufacture 试生产 trialkali photocathode 三碱性光电阴极 ...
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Trial-manufacture of new products 试制新产品
trial manufacture results 试制结果
H. The trial-manufacture of new products, test a number of requirements;
新产品的试制、试验的若干要求；
Improved design of the old instrument shaft, made success through one trial-manufacture.
改进了仪表传动轴原设计，一次试制成功。
The article introduces trial-manufacture of grouting steel-edged rubber water stop and its application.
介绍了可注浆式钢边橡胶止水带的试制及应用情况。
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