The special well with negativebenefit may be not abandoned.
具有特殊用途的负效油气井并不一定要废弃;
2
Economic loss of soil and water loss in highway has negativebenefit by man-made accelerated erosion in zonal region.
高速公路水土流失损失是一个带状区域人为加速土壤侵蚀所产生的生态环境负效益。
3
Credit derivatives are also negativebenefit assets, so it can completed the credit risk hedging positions by the transaction between sellers and buyers.