The familiar structures of loose core and ejector of hydrocylinder in injection mold were introduced.The calculating method of selecting hydrocylinder and the key points in using it were discussed.
介绍了液压
缸在注塑模具中常见的抽芯及

构,并对选取
缸的计算方法
用要点进行阐述。
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In 1912 a man drilling a well for the town water supply reported bringing up a lot of strangely deformed rock, a crystalline clast breccia with a melt matrix, and overturned ejector flap, as it was later described in an official report.
1912 年,一名男子为城镇供水系统钻了一口井,报告说发现了许多奇怪变形的岩石、带有熔融基质的结晶碎屑角砾岩和翻转的喷射器瓣,后来在官方报告中对此进行了描述。