Warning: file_put_contents(/www/wwwroot/ppbbbu/5356789.com/cache/78d731c0b5f4de7860bc36070ee8c88d.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/5356789.com/index.php on line 55 k-point例句_k-point英汉例句_k-point双解例句_零六五六深蓝词典
In order to ensure that the structure is stable, the working stresses are kept well below the yield point or the proof stress. 爲了保証結搆穩定,工作應力應很好地保持在屈服點或彈性極限以下。