Strainer and bypass valve are extra equipment.
过滤器和旁通阀是另外的装备。
Apart from the need for extra equipment, this approach poses various problems.
不仅需要额外的设备，这种方法还会引起各种问题。
And I have to do some extra work for the equipment.
因此我必须做额外的工作。
You can get extra hiking accessory equipment based on this knowledge.
你可以在此基础上额外远足配套装备知识。
You can get extra hiking accessory equipment based on this knowledge.
你可以在此基础上额外远足配套装备知识。
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