日本uni三菱按动中性笔UMN-155学生考试低阻尼笔0.5黑色85N笔芯0.38彩色uniball水笔signo三菱黑科技笔um155 6.8元 (包邮,需用券)价格:7.8元满5减1每200减30uni 黑科技日本三菱按动UMN-155学生考试阻尼黑色笔芯0.38彩色ball 水笔signo um155 中性笔1 元优惠券...
JJ15有一段所谓的“磨合期”，磨合期过了之后就很好写，umn155上手就很顺滑。JJ15目前大概5RMB左右，...
JJ15目前大概5RMB左右，umn155现在9块左右，性价比都很高（可能umn155稍微高一点点？）非要选一个就建...
本实用新型公开了一种具有防护功能的无极绳绞车,包括轨道,梭车,张紧器,绞车,尾轮和钢绳,所述梭车活动连接在轨道的上部,所述张紧器固定安装在轨道的一端位置,所述尾轮活动安装在轨道的另一端位置,所述钢绳绕过尾轮经过梭车,张紧器被绞车卷绕,所述张紧器与绞车之间设有浸油机构,所述绞车的底部设有减震机构,所...
An apparatus for sealing a passage through tissue communicating with a blood vessel includes a bioabsorbable plug member coupled to the distal end of a carrier member. The plug member includes a lumen extending therethrough that communicates with a lumen extending through the carrier member. A seali...
摘要: PROBLEM TO BE SOLVED: To provide a method for treating coke oven discharge by-products which can reduce the amount of the by-products to be discharged into the air from a coke oven.收藏 引用 批量引用 报错 分享 文库来源 其他来源 求助全文 The by-product which is discharged from the...
具体多少没有测过JJ15有一段所谓的“磨合期”，磨合期过了之后就很好写，umn155上手就很顺滑。