Safe electrical sliding contact line is a kind of lifting.

安全滑触线是起重电气的一种.

互联网

The lubricant must minimize the damages the metal - to - metal sliding contact.

润滑油可能把金属与金属滑动接触造成的损害减少到最低限度.

互联网

Steel body sliding contact line is a kind of lifting accessories.

钢体滑触线是起重配件的一种.

互联网

The contact among grains can be classified as perfect contact and sliding contact.

将砂土颗粒的接触方式分为完善联结和滑动联结.

互联网