英[ˈpensəl li:d] 美[ˈpɛnsəl lid] 释义 笔心 实用场景例句 全部 Pencil Lead, Eraser, Glue, Pencil, An Pen Clip, Clipper Stationery. 采购产品铅笔铅, 橡皮擦, 胶水, 铅笔, 钢笔剪辑, 快船文具. 互联网 The color of an HBpencil leadis too light to be read by the machine. ...
It also concerns a pencil comprising such a lead and the use of a lamellar mineral filler having a lamellarity index greater than 2.8 to improve the flexural resistance and/or the smoothness, and/or the vividness of a polymer-based extrudable non-calcined pencil lead.GOUEREC Julien...
pencil lead铅笔芯(pencil lead)是铅笔的核心书写部分,由石墨与黏土等材料混合制成,其硬度等级多样,用途广泛且制造工艺复杂。下文将从材料构成、硬度分类、制造流程、使用场景及环保措施等方面展开说明。 一、材料与构成 铅笔芯并非含铅,而是由石墨粉、黏土及少量添加剂组成。石墨提供书写所需的...
Vugular pore openings are frequently as large as an ordinary lead pencil and are usually attributed to leaching of the rock subsequent to deposition.───孔穴开孔通常与一支普通的铅笔一样粗,这是由于沉积后岩石的侵析作用造成的。 He took a stump of lead pencil out of his pocket and scribbled ...
M&G Hb 0.5 Pencil Leads for Mechanical Black Pencil Lead, Find Details and Price about Pencil Pencil Leads from M&G Hb 0.5 Pencil Leads for Mechanical Black Pencil Lead - SHANGHAI M&G STATIONERY INC.
英[li:d ˈpensəl] 美[lid ˈpɛnsəl] 释义 n. (石墨)铅笔 实用场景例句 全部 I need a softlead pencil. 我需要一枝软芯铅笔. 互联网 Pieces of bread were used to eraselead pencilbefore rubber came into use. 在橡皮擦使用之前,人们用一片面包来擦铅笔字. ...
M&G Pencil Lead Adopting Excellent Graphite for Exam 2b 2.0mm, Find Details and Price about Pencil Pencil Leads from M&G Pencil Lead Adopting Excellent Graphite for Exam 2b 2.0mm - SHANGHAI M&G STATIONERY INC.
lead penciln. (石墨)铅笔 lead pencil stools铅笔样粪 pencil into make a preliminary appointment which may be subject to change in the lead带头,领先,处于领先地位 lead tov. 1. 把…带到,领到 2.(道路)通向 3. 导致,引起 to lead居首
lead pencil n. (石墨)铅笔 lead pencil stools 铅笔样粪 pencil in to make a preliminary appointment which may be subject to change in the lead 带头,领先,处于领先地位 lead to v. 1. 把…带到,领到 2.(道路)通向 3. 导致,引起 to lead 居首 colour pencil 彩色铅笔,笔型显色测温计...
lead pencil英语 标准发音:lead pencil 英式发音: 美式发音:liːd ˈpensl 翻译中文 铅笔 lead pencil - 基本释义[词典1] N.[名词] (石墨)铅笔 lead pencil - 基本释义[词典2] N.[名词] 铅笔 lead pencil - 英英词典 NOUN[名词] pencil that has graphite as the marking substance 以石墨为标记物质...