The bending deformation of V-shape composite insulator string under strong wind may cause the risk of ballhead falling off and string falling apart.
型复合绝缘子串在大风作用力下受到弯曲变形，有球头脱落造成掉串的风险。
2
The built-in ballhead allows you to adjust and set its friction so that it balances the weight of your camera without needing locking and unlocking between positions.
嵌入式球形云台可调节和设定阻尼，无需在不同位置间锁定和解锁，即可平衡相机重量。
3
He saved one shot when the ball hit him on the head.