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可提供每个阀门完整的维护维修说明书。
Complete maintenance service instructions for each valve are available.
youdao
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一全套维修和操作说明书应随货置于箱子中。
One full set of service and operation instructions shall be enclosed in the case.
youdao
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一全套维修和操作说明书应随货置于箱子中。
One full set of service and operation instructions shall be enclosed in the case.
youdao