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模具孔洞尽量设计导通，预防残留药水不易清洗。
Designs passage in the hole to clean the remnants.
youdao
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对挤拉模具进行清洗、维护和修理。
To manage the clean and maintenance of the pultrusion tools.
youdao
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对挤拉模具进行清洗、维护和修理。
To manage the clean and maintenance of the pultrusion tools.
youdao