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.

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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.

youdao

介绍了一种无飞边、多腔、圆截面橡胶密封圈压模的设计方法及制造技术，采用这种方法设计制造的模具结构简单、可靠，生产的产品质量良好。

The design technique and manufacture technology for a kind of multi-cavity, no-burr and round-section rubber sealing ring with multi-cavity and no-burr were introduced.

youdao

介绍了一种无飞边、多腔、圆截面橡胶密封圈压模的设计方法及制造技术，采用这种方法设计制造的模具结构简单、可靠，生产的产品质量良好。

The design technique and manufacture technology for a kind of multi-cavity, no-burr and round-section rubber sealing ring with multi-cavity and no-burr were introduced.

youdao