1) keeping lightness from draining salty
排咸蓄淡
4) salinity washing both by rain and river
引淡洗咸
5) salinity washing only by rain
缺淡洗咸
6) brackish-mixed irrigation
咸淡混浇
1.
The brackish-mixed irrigation is an irrigating way of mixing the brackish water in a shallow well and the fresh water in a deep well according to a certain proportion,which can save water and energy with less investment and good effection.
咸淡混浇是将浅井微咸水和深井淡水按一定比例进行混合灌溉的一种灌溉方式,具有节水、节能、投资小、见效快等优点。
补充资料：说咸道淡
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