And the real-time acquisition of accurate soil parameters will enable a robot to autonomously achieve accurate traversability prediction and effective traction control.

实时获得准确的地面关键性参数能使自主运行的机器人得到准确的通过性预测和牵引力控制。

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In this case, Freemium can help you gain traction if you use an effective invitation mechanism.

从这方面来说，如果你采用一个有效的邀请机制，免费商业模式可以帮助你获得牵引力。

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It's slightly less effective than a manual transmission, but remember you only need to use the stall recovery technique on really steep hills where traction is compromised.

这套办法在自动变速器上比在手动变速器上的效果略差，不过记住，只有在真正的陡坡上牺牲牵引力的情况下才需要使用这套熄火自救技术。

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The county council said sand was a "highly effective way of providing traction" and would be used on pavements next to main roads, in town centres and around some secondary schools.

BBC: Death-trap fear as salt runs low