找回密碼
 To register

QQ登錄

只需一步,快速開始

掃一掃,訪問微社區(qū)

打印 上一主題 下一主題

Titlebook: Hand & Machine Woodwork; H. G. Miller Textbook 1962Latest edition Macmillan Publishers Limited 1962 biology.engineering.machine.production

[復(fù)制鏈接]
樓主: finesse
21#
發(fā)表于 2025-3-25 05:47:04 | 只看該作者
22#
發(fā)表于 2025-3-25 09:23:06 | 只看該作者
Introduction, offered to students in the Secondary Schools. Over the years many students have found woodwork a worth-while occupation. Others who chose not to make woodworking their life work have found that the training they received was of great value to them in many ways, such as in making necessary repairs t
23#
發(fā)表于 2025-3-25 14:29:29 | 只看該作者
24#
發(fā)表于 2025-3-25 17:55:28 | 只看該作者
25#
發(fā)表于 2025-3-25 23:19:03 | 只看該作者
Wood As a Material,could be shaped and several pieces joined together to make all manner of useful things. With the advance of civilization other materials have replaced wood for some purposes, but there has been, at the same time, a very large increase in the number and variety of new products manufactured from wood
26#
發(fā)表于 2025-3-26 02:11:18 | 只看該作者
Wood Shrinkage and Warpage,k or swell depends on how much moisture the wood contains: freshly sawn wood contains a great deal; lumber that has been seasoned contains little. The moisture content of the air surrounding lumber will also determine the amount of shrinkage or swelling which takes place. Wood gives up moisture and
27#
發(fā)表于 2025-3-26 04:33:19 | 只看該作者
Bill of Material: Board Feet and Lumber Grades, because they fail to estimate the actual quantity of material required. Thus the first step is to make a list of materials required to complete the project. This list is referred to as a “Bill of Material”. It should be complete, listing each piece, its exact thickness, width and length as well as
28#
發(fā)表于 2025-3-26 11:20:44 | 只看該作者
Squaring Stock,o make a true rectangular shape with all surfaces flat, all corners square, all opposite sides parallel and of the correct thickness, width and length. You may have performed this operation before; however, this is an important one which you should be very familiar with.
29#
發(fā)表于 2025-3-26 14:18:15 | 只看該作者
Brace, Bits and Drills,d, you should have no difficulty. Holes must be located accurately; they must be bored at the correct angle, and the wood should not be allowed to split when the bit comes through the back of the stock. The bits should be sharp.
30#
發(fā)表于 2025-3-26 18:23:44 | 只看該作者
 關(guān)于派博傳思  派博傳思旗下網(wǎng)站  友情鏈接
派博傳思介紹 公司地理位置 論文服務(wù)流程 影響因子官網(wǎng) 吾愛論文網(wǎng) 大講堂 北京大學 Oxford Uni. Harvard Uni.
發(fā)展歷史沿革 期刊點評 投稿經(jīng)驗總結(jié) SCIENCEGARD IMPACTFACTOR 派博系數(shù) 清華大學 Yale Uni. Stanford Uni.
QQ|Archiver|手機版|小黑屋| 派博傳思國際 ( 京公網(wǎng)安備110108008328) GMT+8, 2025-10-9 08:55
Copyright © 2001-2015 派博傳思   京公網(wǎng)安備110108008328 版權(quán)所有 All rights reserved
快速回復(fù) 返回頂部 返回列表
望奎县| 肇庆市| 岳普湖县| 龙海市| 连平县| 白玉县| 治县。| 通州区| 清徐县| 临湘市| 广西| 太白县| 寿宁县| 收藏| 乐安县| 苗栗县| 舞阳县| 镇巴县| 黑山县| 古蔺县| 隆尧县| 临沂市| 万宁市| 米林县| 拉萨市| 山西省| 安平县| 奉新县| 四川省| 都江堰市| 孝义市| 汉沽区| 义乌市| 乐业县| 南江县| 东莞市| 清镇市| 龙门县| 鹿邑县| 漠河县| 兰考县|