常見例句雙語例句Materials: rapidograph, silver gel pen, water color pencil, colored ink, paper.媒材：針筆、銀色中性筆、代針筆、水性彩色鉛筆、彩色墨水。紙。liuyingchieh.comThe company mainly produces roller-tip pens, ball point pens, Gel ink pen white board marker permanent marker, mechanical pencil and other stationeries.公司主要生產(chǎn)水性筆、中性筆、圓珠筆、白板筆、記號(hào)筆、活動(dòng)鉛筆等文化用品。By using the structure, the pen point points downward all the time when the gel ink pen is hung, thereby preventing the ink in the gel ink pen from flowing out.由于采用上述結(jié)構(gòu)，所以在中性筆在掛筆時(shí)，筆尖始終向下，能防止中性筆芯墨溢出。ip.com 返回 gel ink pen