[Objective] The research aimed to study the climate variation characteristics of frost in Shandong Province. [Method] The daily minimum surface temperature ≤ 0
[Objective]The research aimed to study the effect of underground temperature on the adsorption behavior of chlorobenzene under artificial recharge condition. [M
[Objective]The characteristics and rules of low-level air in Anqing from 2004 to 2008 were studied.[Method] By dint of L waveband radar air-exploration meteorol