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其最大特点是：臭氧在消毒杀菌净化的过程中无任何残留物及二次污染。
Its most important feature: no ozone pollution residues and secondary disinfection purification process.
youdao
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消毒后无任何毒害残留物，安全可靠。
No poisonous residue after disinfection, safe and reliable.
youdao
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消毒后无任何毒害残留物，安全可靠。
No poisonous residue after disinfection, safe and reliable.
youdao