排放 páifàng to arrange in order
to arrange in order; to emit; to discharge (exhaust gas, waste water etc); (of animals) to ovulate; to discharge semen
How to remember 排放: 排 row + 放 put = to arrange in order.
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How it is used
- To discharge/emit - mainly exhaust, waste, or pollutants: 排放废气 (páifàng fèiqì) emit exhaust gas, 碳排放 (tàn páifàng) carbon emissions.
- The dominant modern sense is environmental emission/discharge, both verb and noun.
- The literal 'arrange in a row' sense is rare; contrast 排列 (páiliè) for arranging in order.