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The weightlifting belt prevents spinal hyperextension by forming a hard posterior wall surrounding the lower torso and connecting the ribs and hip bones. This not only limits the backward movement of the spine, but also prevents the scoliosis and rotation of the spine. You can think of the belt as an external bone, which connects the ribs and hips by surrounding them, thus increasing stability. The strength weightlifting belt with the same width is designed according to this principle. Due to the large range of movements, the normal binding method (front binding) of the conventional weightlifting belt (narrow front and wide back) is also to achieve this goal.The following code encapsulation:There is another point, Because the drag armour-piercing cocktails were almost useless before, After so many supplies, we have accumulated a lot of ammunition, and the quantity is almost equal to that of ordinary bullets, so we can play with "strength" and don't have to worry about not enough ammunition. This is much better than "74 sprays" which have to be used crepily. If there is enough ammunition, we can output high firepower, which is as simple as that. "Zhang Xiaobo said.Q: Which sub-area of machine learning do you pay most attention to?每年雨季前熊大都会带领动物们对狗熊岭堤坝进行修缮加固，但是小动物们偷懒拖沓，让熊大日渐不满。一日暴雨突降，堤坝倒塌，熊大愤然离开家园，没想到却被泥石流冲走。当它醒来时发现自己在一个落魄的马戏团里，一场偶然表演救场，让熊大被留下，成为马戏团的一员。而同时，森林里的动物们却一个接一个神秘失踪。An event can have many listeners attached to it. These listeners tell the system to call my XXX method when the event occurs by registering their own event handling routines.