Warning: file_put_contents(): Only 0 of 5358 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/52065.com/index.php on line 55 ball point pen refill是什么意思，ball point pen refill的翻译，ball point pen refill音标、读音、用法和例句_伍贰汉英词典
The double-tube ball-point pen consists of a penholder, two pen heads, two pen refills and two pen caps, wherein the penholder is provided with two parallel tubes; 本实用新型是由一个笔杆、两个笔头、两个笔芯和两个笔 帽组成。笔杆有两个平行的管道； ip.com