请输入您要查询的英文单词:

 

单词 Projectile point
释义

Projectile point

原声例句
新编英语教程5

Men made their own spears, bows, and arrows, and projectile points.

人们制造了自己的长矛、弓箭和射弹头。

英语百科

Projectile point

Standard projectile point terminology used in describing Native American projectile points: a - point or tip, b-edge, c- blade or face, d - step, e - tang, f - base, g - notch, h - barb, i - shoulder.[1]

In archaeological terms, a projectile point is an object that was hafted to a projectile, such as a spear, dart, or arrow, or perhaps used as a knife.

Stone tools, including projectile points, can survive for long periods, were often lost or discarded, and are relatively plentiful, providing useful clues to the human past, including prehistoric trade. Scientific techniques exist to track the specific kinds of rock or minerals that used to make stone tools in various regions back to their original sources. Occasionally, projectile points made of worked bone or ivory are found at archaeological sites. In regions where metallurgy had emerged, projectile points were made from copper, bronze, or iron. In North America, some late prehistoric points were fashioned from copper that was mined in the Lake Superior region and elsewhere.

随便看

 

英汉双解词典包含3607232条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
京ICP备09058993号 更新时间:2025/8/10 1:29:47