两家欧洲公司——德国Wirth和意大利seli为这项工程提供了隧道钻井装备以及通风设备。
Two European companies — Germany's Wirth and Italy's Seli — supplied tunnel-drilling machinery and ventilation equipment.
两家欧洲公司--德国Wirth和意大利Seli为这项工程提供了隧道钻井装备以及通风设备。
Two European companies -- Germany's Wirth and Italy's Seli -- supplied tunnel-drilling machinery and ventilation equipment.
用来浇铸，完成以及检查O型环的机械由欧洲大陆国家制造；如此一来，当公司规模扩大时，进口这些设备就需要投入更多的资金。
The machines used to mould, finish and check its O-rings are made in continental Europe, so have become dearer just when the firm is expanding.
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