The incidence of cerebral infarction in left sphere was lower than in rightsphere.
脑梗死发生于左半球高，右半球低；
2
Now create a sphere on your viewport and right click on it, select properties and deselect renderable.
现在在视窗中创建一个球体并右击它，选择属性然后关闭可渲染属性。
3
Owing to thunderstorm in the front of us, the sphere is very wide, we can not avoid the thunderstorm from left and right. Request to change altitude to 11000m t overhead the thunderstorm.