It even results in geologic hazard;for the mine geologic hazard,the background of physiognomy is the potential factor,while the irrational exploitation is the magistral factor.
矿山地质灾害发生,地质地貌背景是诱发潜在因素,不合理开采方法是诱发因素,降和水文条件是激发灾难发生直接原因。
It even results in geologic hazard;for the mine geologic hazard,the background of physiognomy is the potential factor,while the irrational exploitation is the magistral factor.
矿山地质灾害发生,地质地貌背景是诱发潜在因素,不合理开采方法是诱发因素,降和水文条件是激发灾难发生直接原因。
Chapter four is the research on diversity architectures of agriculture technique extension mode, analyzing the necessity that diversified mode constuct. several magistral modes is comparative studied.
第四章,多元化农业技术推广模式构建。
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