美 英 网络自动铅笔;活动铅笔;填心铅笔 复数:mechanical pencils 英英 网络释义 n. 1. apencilmadefromplasticormetalratherthanwoodthatisalwayssharpandreadytowritewith.TheBritishwordispropellingpencil.
mechanical pencil自动铅笔(mechanical pencil),也称为propelling pencil,是一种通过内部机械结构控制笔芯伸缩的书写工具。其核心特点在于无需削切,通过按压或旋转方式即可持续出芯。下文将从结构、原理、历史、优缺点及应用场景等方面展开说明。 一、结构与工作原理 自动铅笔通常由笔杆、出芯...
Replace the lead in your mechanical pencil with refills in various grades and colours from Rotring, Pilot, Faber-Castell at the world's largest pen shop.
pencil hardness 铅笔硬度(阻焊剂的一个参数) soldering pencil 钎焊笔 vacuum pencil 真空笔 pencil gate 铅笔形浇口 相似单词 pencil n.[C,U] 铅笔,色笔,画笔 v.[T] 用铅笔写或涂 mechanical a. 1.机械的,力学的 2.机械似的;呆板的 3.机动的,机械驱动的,机械的 4.机器的,机械的,发动机的 5...
Laser pen Customization BAOKE Face mask Mechanical pencil Condition:Mechanical pencil[Delete] 1+1ZD150 1ZD150 5-ZD120 6-ZD121(HB0.5) 7-ZD122(2B0.5) 9-ZD124(HB0.7) 10-ZD125(2B0.7) 12-ZD127(HB0.9) 13-ZD128(2B0.9) QX118 QX119 ...
今天题目中的两个词mechanicalpencil 和propellingpencil 其实意思一样,都是自动铅笔的意思。我故意把两种说法写在一起的。 BTW,mechanical pencil was invented in 1565 by Conrad Gesner, a Swiss naturalist, and bibliographer. 这篇小...
The invention belongs to the field of automatic pencils and particularly discloses an automatic pencil which aims to be reasonable in design, simple in structure, convenient to use, capable of replacing pencil leads of different types, strong in universality and capable of adjusting the length of ...
mechanical pencil ph. 1. 自动铅笔 生辰测算手机吉凶2025年运势一生财运 性别: 男女 生日: 立即测试》 立即测试 立即测试 立即测试 2025流年运势 八字合婚配对 十年爱情桃花 八字一生运程 手机号码吉凶 心理测试大全 广告x
AL Sport Mechanical Pencil Deep Red $149.00 SKU: KW-10001604_R 4 payments of $37.25 with Add to cart Description First produced way back in 1911, the Kaweco Sport is among the earliest pen designs still in use today. Its pocket-friendly construction made the Sport an enduring favourite...
Mechanical Pencil Highlighter Gel Pen Bundle Company Profile Ningbo Taiyu was established in 1986. It is located on the northwest of Ningbo. Our company is professional on mechanical pencils, gel pens, painting material production. We also...