必要时应提供灌浆位置和通气孔。
Grout placement and vent holes should be provided if necessary.
并应在海事报告书中，说明存油的数量及通气孔的位置。
The amount of the oil in stock and the positions of the air vents shall be clearly stated in the maritime reports.
并应在海事报告书中，说明存油的数量及通气孔的位置。
The amount of the oil in stock and the positions of the air vents shall be clearly stated in the maritime reports.
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