top gating 中文意思是什麼
top gating
解釋
頂澆法-
In order to producte qualified inlet manifold casting, top gating system with lip riser and shell core made of precoated sand is used
為了獲得合格的進氣歧管鑄件，採用壓邊頂鑄澆注系統和覆膜砂殼芯製作工藝。
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