也许越差的学校会坐落在污染越严重的地方，又因为天气热时空气质量会下降，所以可能是学校或是温度的不同影响了成绩。
Worse schools could be located in more polluted neighbourhoods, and air quality falls in hot weather, so it could have been variation in schools or temperature that affected results.
本文简述了微波热修复污染土壤技术的研究现状，系统综述了修复机理、影响因素，展望了今后进一步研究的重点。
This paper reviewed in brief the present research status of thermal-remediation with microwave energy, discussed its mechanisms and influencing factors, and looked into future of the study for focal.
本文简述了微波热修复污染土壤技术的研究现状，系统综述了修复机理、影响因素，展望了今后进一步研究的重点。
This paper reviewed in brief the present research status of thermal-remediation with microwave energy, discussed its mechanisms and influencing factors, and looked into future of the study for focal.
应用推荐