短语词组短语side cavity parting 侧分型side -parting core-pulling mechanism 侧向分型与抽芯机构two -side cavity parting 双向分型Devising Side Parting 侧抽芯机构side parting and core -pulling 侧向分型和抽芯side parting core -pulling mechanism 侧向分型抽芯机构 返回 side part