青云翻译

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2 at the time of cement mortar plastering surface maintenance, take the appropriate measures of protection, prevention of pollution by the next procedure.

2 when cement mortar powder brush finish maintenance, takes the corresponding protective measures, prevents the evil ways working procedure pollution.

2 in cement mortar stucco-oriented to take corresponding measures of protection, conservation, pollution prevention next process.

2 at the time of cement mortar plastering surface maintenance, take the appropriate measures of protection, prevention of pollution by the next procedure.