三废 san1 fei4

three types of waste product, namely: waste water 廢水|废水[fei4 shui3], exhaust gas 廢氣|废气[fei4 qi4], industrial slag 廢渣|废渣[fei4 zha1]

Traditional: 三廢

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san1

fei4

📖 Additional Information

English Phonetic: θri:
Detailed Definition: n. the cardinal number that is the sum of one and one and one\ns. being one more than two