Inertia Vibrating Knock-out Machine is mainly used for casting off foundry sand from proplasm after mechanized molding and pouring in the foundry.

惯性振动落砂机主要用于铸造车间机械化造型浇注后铸型的落砂。

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Jobs that plummeted to the bottom of the happiness chart along with the roofers included garage and service station attendants and molding and casting machine operators.

同屋顶工一样是在快乐程度名单上垫底的职业包括：垃圾和服务站工作人员，制模和铸造机器操作员。

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