Displacement indicates engine size, and compression ratio compares the total cylinder volume to compression chamber volume.
位移表明发动机的大小,和压缩比比较气缸总容积压缩室容积。
If the ball within the cylinder sediment, and welding slags sundry total volume in not more than 5 litre, pigging qualified.
若收球筒内泥沙、焊渣等杂物总体积不超过5升,清管合格。
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