An arrow is the head of a bow and arrow. Also known as samarium. Arrow has a long history. Humans have used them for at least tens of thousands of years. In ancient times, people made arrows from animal bones and stones. Later, people invented smelting technology, that is, using bronze to make arrows. Then the iron appeared, and the iron sword head and steel arrow appeared. The arrows in modern competitive archery are all target arrows, generally made of relatively soft alloy, which has poor penetration, so it is relatively safe.

Basic introduction Chinese name: Arrow mbth:Arrow；; Arrow; Arrow tip; Arrow point; Nickname: arrowhead concept: bow and arrow head material: animal bones, bronze molding: used in the Spring and Autumn Period: blade, which can cause cutting damage to animals. Japanese: 镞やじりりりりりりりりりりりりりりりりりりりりり12426 Arrows used for hunting in the early days of ancient hunting generally have wide blades, which can cause great cutting damage to animals and make them bleed a lot, so even if they can't kill animals at that time, they will bleed to death. Later, in the long history of human war, all kinds of arrows emerged one after another, such as armor-piercing arrows, loud arrows that can transmit information and so on. The target arrows used in modern archery are generally large obtuse arrows or parabolic arrows. This kind of arrow has small air resistance, but poor penetration, thus ensuring the stability and safety of the arrow flight path during archery. Conical arrow arrow symbol used in ancient wars, computer terminology, drawing software, office software and other computer software often need to use arrow symbols to indicate. Taking Microsoft Word20 10 software as an example, this paper introduces the method of inserting the arrow symbol: step 1, open the Word20 10 document window, click the formula to add the arrow symbol to make it in the editing state, and position the insertion bar cursor at the target position. Step 2: In the symbol group of Formula Tool/Design Ribbon, click other buttons to open the symbol panel, and then click the drop-down triangle button at the top. Select the Arrow option in the Open drop-down menu, and select the desired arrow symbol in the Open Arrow Symbol panel.