Provided that a dual-purpose nozzle capable of producing alternately such a spray and a plain water jet may be provided in substitution.
但可设置能交替地产生上述喷雾及普通水柱的两用喷嘴作替代。
Provided that a dual-purpose nozzle capable of producing alternately such a spray and a plain water jet may be provided in substitution.
但可设置能交替地产生上述喷雾及普通水柱的两用喷嘴作替代。
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