Warning: file_put_contents(): Only 0 of 4900 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/cp667.com/index.php on line 55 polepiece例句_polepiece英汉例句_polepiece双解例句_淳朴汉英词典
Also because of closely spaced polepiece and the associated capability of focusing low-voltage beams, folded waveguide circuit is well suited for light weight applications. 由于紧凑的整体极靴，能对低电压电子注聚焦，因而很适合要求轻重量的场合。