The high-speed multicycle impact and speed, load fluctuant characteristics is a key factor that has influence on resistance to wear and resistance to multicycle impact for automotive engine chain.
汽车发动机链条的高速多冲特性以及速度与载荷的交变特性，是影响其耐磨性能和多冲抗力的关键因素。
2
Small frontal area and high stability reduce the wind resistance effectively and load of lamp pole, which is advantaged for going against the wind, make it safe and reliable.
产品迎风面积小，稳定性高，有效降低了风阻，减轻灯杆的负荷，有利于抗风，安全可靠。
3
When pile length and the ratio about pile length to pile diameter is less than 25, side resistance is aggrandized by increasing of the load, and gently added at high stress level.