单词gel-pen
网络: 中性笔；啫喱笔；签字笔
To gel pen in the case of large temperature changes, to maintain good moisture seal to prevent ink evaporation or overflow back.
为了凝胶在较大的温度变化时笔，要保持良好的密封，以防止水分蒸发或墨水溢出回来。
GEL pen program get the honor of "excellent torch plan program" from Technology Dept.
中性笔项目纳入科技部“优秀火炬计划项目”；
Gel pen program get the honor " national key torch planning program" .
中性笔项目纳入“国家级重点火炬计划项目”。
Gel pen refill with large capacity can write for 1300M.
大容量中性笔芯，书写长度达1300M。
On Ink of a Gel Pen and Its Examination Methods
签字笔墨水及其检验方法