试生产阶段：进行小批量试生产，进一步验证产品的工艺性，以及样机试制后设计修正的有效性。
Trial production Stage: Trial production of small lot size shall be carried out to further verify product processibility and effectiveness of design amendment after prototype production.
试生产阶段：进行小批量试生产，进一步验证产品的工艺性，以及样机试制后设计修正的有效性。
Trial production Stage: Trial production of small lot size shall be carried out to further verify product processibility and effectiveness of design amendment after prototype production.
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