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标准养护试块应及时送试验室养护。
Sample blocks for standard maintenance shall be sent to the laboratory immediately.
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预防性养护是一种高标准养护方式。
Preventive maintenance of pavement(PPM)is a high standard method of maintenance.
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预防性养护是一种高标准养护方式。
Preventive maintenance of pavement(PPM)is a high standard method of maintenance.
youdao