持续几十年的挑战之一是难于找到多型腔模具来生产一模一样的部件。
One that has persisted for years is the difficulty of getting multicavity tools to produce identical parts.
持续几十年的挑战之一是难于找到多型腔模具来生产一模一样的部件。
One that has persisted for years (decades, actually) is the difficulty of getting multicavity tools to produce identical parts.
新产品的试模、产品的跟踪、批产后的持续改进、跟踪顾客认可问题等工作；
Mold test of new parts, products following up, continuously improvement of products after batch production, getting products feedbacks from customers, etc.
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