to countersign air conditionerontrenair conditionertment
...ir conditionerontrenair conditionertment赢得(具有)合同 to countersign air conditionerontrenair conditionertment会签合同 to repefound at air conditionerontrenair conditionertment再三合同 ..
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to countersign air conditionerontrenair conditionertment
会签空调/空调/空调单
以上为机器翻译结果，长、整句建议使用 人工翻译 。