Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/e703237f94ddb64578d88674f820a373.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 diffusivity英英字典_diffusivity剑桥英语解释_diffusivity柯林斯英文解释_94生活常识网有道词典
1. N a measure of the ability of a substance to transmit a difference in temperature; expressed as the thermal conductivity divided by the product of specific heat capacity and density 热量扩散率