tļβåͱ˨Ѽ־˨Ѽ

@˶ӹЦ˨Ѽɲ~ȵȲҺԮӡ
 
@1^ࡢԸ˷˨ѼǨѼanti-syphonage pipe^إ禥ޢܹ޳ŲܡԲƢجʽԸĺԿȧ˷˨ѼܡԲƢ~֫ͼŨغ¡Щɸ箣 ]water seal^¡­trap^~͡anti-syphonage^裡Źҭש¡ķ˶̢ު

@2^ܡԲƢجɿ˴ޤݱѺĢֲͼ˯ŸϷ踼ҺøĺȥԼħ~禥ޢܹ޳Ҳ˨Ѽ׾JˡͼӼĺjɷˤмվ䩵ûͼߡ

@3^Ȼ~ذмʿӦ纺Ǯۼ˽ƳֵӶڿѣس׵~ŻնɧǺ˨ѼޤѢۼӼŹι襻ޤѼܹ¡

@4^~䰢̳ܡԲƢջ谱ٰΨʻOͼʾ轧ͼʻýӹơ

@5^h̭Ǻ˨Ѽ¡ǺڿѼƷҶݽhɩ¯׵ܹ𡵵Ѵĺ꽣Ң~ҽ趵Ҳβ־ӹҬ̨­¬ڷȼǨáwww.bd.gov.hk/doc/tc/resources/pamphlets-and-videos/DrainagePipeMaintenance.pdf^~ȵŹɲѼʹѻIJå˨Ѽͧ־өѡ



2020~212]ơ
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