亚洲一级免费视频|日韩少妇视频无码不卡|国产日韩欧美一区二区|五月婷综合久久精品国产色|美女一级中文字幕免费视频|一本大道中文字幕无码29|激情久久av一区av二区av|亚洲国产综合精品 在线 一区

1. Conditions that the golf course needs to meet:

The golf course consists of natural features such as grass, lakes, sand and trees. A standard golf course covers an area of 60~100 ha hm2 (hectares) and generally includes 4 par 3 holes, 10 par 4 holes and 4 par 5 holes, totaling 18 holes. According to the 18-hole ball, it is divided into 18 venues of different sizes, each of which is composed of 4 parts: tee, fairway, green and hole.

The club and ball

The golf club consists of three parts: the head, the shaft and the grip, and its length is generally between 0.91 and 1.29m. According to the different needs of hitting distance, each player can bring up to 14 clubs into the field, and the following configuration is appropriate: 4 woods, 9 irons and 1 putter.

The wooden pole is actually an alloy material. Because it was made of high-elasticity and high-hardness wood such as persimmon wood in the early days, it is still called a wooden pole. The wood is characterized by a relatively long and large head. The wood is suitable for hitting long distance shots.

Irons are relatively short and have a small head. Irons dont hit the ball as far as woods, but they can control the balls landing to a more precise level.

A putter is a special club for putting a ball into a hole on the green.

Golf balls are generally small solid white balls made of rubber, and the surface is evenly covered with dimples, which is conducive to stable flight and improved accuracy. The hardness of golf balls is generally 70° to 105°. The higher the degree, the harder the ball and the harder the direction. Beginners are suitable for balls with lower hardness. The soles of golf shoes generally have about 6 to 7 sole spikes. , which prevents slippage and keeps players balanced when swinging.