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论文作者:www.51lunwen.org论文属性:调研报告 Research Proposal登出时间:2014-12-08编辑:Cinderella点击率:15547
论文字数:6218论文编号:org201411161702298598语种:英语 English地区:英国价格:免费论文
摘要:匕首对于人类意义重大,它是人类历史上最初开始使用的工具之一,是人类文明进化里的重要推动因素。本文介绍了匕首的历史、类型、颜色、材料、生产过程等方面,具有极大的参考价值。
这篇文章介绍了匕首的历史、类型、颜色、材料,以及生产过程。随后我选择了一件匕首的产品来研究为何小刀被制作成这种形态。
匕首的历史
匕首是一种具有刀锋或者刀刃的割削工具,有的是手持式,还有的有手柄。类似于匕首的工具至少在两百五十万年以前就被使用了,这已经被奥尔德沃文化所证实。最初主要由岩石、火石或者黑曜石制作而成的匕首,就像科学技术一样在逐步进化。匕首在很多文化都有他们自己独特的版本。由于它是人类历史上最初被使用的工具,有些文明使匕首被赋予了精神上、宗教上的意义。现代社会大多数匕首都有固定的刀锋样式或者是折叠款式,它们就像匕首的各种各样的生产者和国家一样,有着丰富多样的刀锋模型与风格。
匕首的种类
匕首是生活中的必备用品,按照不同用法来划分,匕首可以分为武器、运动、装备、餐具和工具。
作为武器,匕首通常被看做必备的工具。它是短兵器战争中的必备元素。例如:弹道匕首,刺刀,格斗刀,短剑,剃刀,双刃短刀等等。
作为运动装备的匕首。飞刀被特别设计和衡量过重量,因此能够被很有效的投掷出去。飞刀与普通的小刀有着十分明显的不同。
This report, introduce about knifes history, type, part, color, material, how to production and the process . And then I choose a product doing research, why the knife make this form.
History of knife
The knife (plural knives) is a cutting tool with an exposed cutting edge or blade, hand-held or otherwise, with or without a handle. Knife-like tools were used at least two-and-a-half million years ago, as evidenced by the Oldowan tools. Originally made of rock, flint, and obsidian, knives have evolved in construction as technology has, with blades being made from bronze, copper, iron, steel, ceramics, and titanium. Many cultures have their unique version of the knife. Due to its role as humankind's first tool, certain cultures have attached spiritual and religious significance to the knife. Most modern-day knives follow either a fixed-blade or a folding construction style, with blade patterns and styles as varied as their makers and countries of origin.
Kind of knife
Knife in the essential to life, in the life may, according to the different USES of the knife can be divided into, weapons, sports ,equipment, utensils, tools.
Knives as weapons, As a weapon, the knife is universally adopted as an essential tool. It is the essential element of a knife fight. For example: ballistic knife, bayonet, combat knife, dagger, fighting knife, rampuri, shiv, trench knife.
Knives as sports equipment. The throwing knife is a knife that is specially designed and weighted so that it can be thrown effectively. They are a distinct category from ordinary knives. Throwing knives are used by many cultures around the world, and as such different tactics for throwing them have been developed, as have different shapes and forms of throwing knife.
Knives as utensils, a primary aspect of the knife as a tool inc本论文由英语论文网提供整理,提供论文代写,英语论文代写,代写论文,代写英语论文,代写留学生论文,代写英文论文,留学生论文代写相关核心关键词搜索。