| 摘要 |
An exhaust gas muffler for an engine, the exhaust gas muffler having: a body, at least one inlet for the exhaust gas from the engine on the body, a chamber in the body to receive exhaust gas from the at least one exhaust gas inlet and to reduce a sound of the exhaust gas, and at least one exhaust gas outlet from the chamber to vent the exhaust gas from the chamber, the exhaust gas outlet being sized and shaped to receive a sound reducing element from outside of the muffler, wherein, by attaching a sound reducing element to the muffler, the muffler can reduce the sound of the exhaust gas to a predetermined level.
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