The model was valid and reliable because the pressure distribution at the tire ground contact, the tire ground contact area and shape were in accordance with those reported in the previous papers.

轮胎接地压力分布、接地面积及形状在趋势上与文献报道的一致，说明此模型有效可靠。

youdao

There is one thing I need to estimate first –the area of contact between the ground and the bubble wrap.

当然，还有一件东西是我们必须首先考虑的——那就是地面与汽泡纸接触面的大小。

youdao

Construction workers should wear gloves and avoid direct contact ground water to reduce area of skin, which is exposed.

建筑工人应避免直接接触地下水，施工时佩带手套，做好保护措施，减少皮肤暴露。

youdao

Centre-back Koscielny was left off balance on the edge of the area and tried to pull his foot out of the challenge but the winger hit the ground after minimal contact and the referee was quick to point to the spot.

BBC: Wigan 2-2 Arsenal