Cold injury refers to local or systemic injury caused by a rapid,massive loss of body heat in a cold environment.The inc......

In laser dermatologic surgery, cryogen spray cooling (CSC) is used to avoid unwanted damage such as scars from skin burn......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......