Operating weight and ground contact pressure can be adjusted by filling water or wet sand with greater adjusting scope.

通过加水或湿沙可调节压路机配重和接地比压，调节方便范围大；

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A special spring in the receptacle connector connects the ground contact to the metal shell for reliable panel grounding.

插座连接器中的一个特殊的弹簧确保地线通过金属面板可靠接地。

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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。

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This will remove air pockets and help the sod make contact with the ground and take root.

VOA: special.2009.07.07

That wire can ground a contact on the circuit board behind the light that triggers a function intended to allow the door to be opened with a remote button, bypassing all its security measures.

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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.

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People on the ground who came into contact with him also gave very similar descriptions.

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