Warning: file_put_contents(): Only 0 of 4850 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/5678977.com/index.php on line 55 floe field例句_floe field英汉例句_floe field双解例句_加林查网西语词典
Change the flute structure to study the contrast of the floe field, provide the basis for the drill bit flute design. 改變排屑槽的分佈方式，研究井底流場變化槼律，爲鑽頭排屑槽的設計提供依據。 lib.swpu.edu.cn