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第一节 概述 1、范围:英国标准5341中第五部分规定了环槽尺寸,极限尺寸和测量所有活塞环槽的方法,使这些环槽能适合本标准第一、二部分中所规定的活塞环。另外还规定了一个公式提供名义气缸内径从30毫米到200毫米的二冲程和四冲程火花和压缩点火往复式内燃机典型的活塞环槽底径和极限尺寸。 注:检验方法应按BS6000。 2、参考资料（本刊略）
Section I General 1. Scope: Section 5 of British Standard 5341 specifies ring groove dimensions, ultimate dimensions and methods for measuring all piston ring grooves so that they fit into the pistons specified in Parts 1 and 2 of this standard ring. A formula is also provided for the typical bottom and bottom piston ring diameters for two-stroke and four-stroke spark and compression-ignition reciprocating internal combustion engines with nominal cylinder diameters from 30 mm to 200 mm. Note: The test method should be BS6000. 2, reference materials (published in this article)