The large heavy-duty gears realize a change from soft surface to hardening surface in our country.

国内大型重载齿轮正在实现由软齿面向硬齿面的过渡。

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Designs o? The closed soft surface gear transmissions are generally restricted by the contact fatigue strength.

闭式软齿面齿轮传动设计中，常受齿面接触疲劳强度的限制。

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If you need to rest your wrist, do so on a soft surface such as on wrist pads that are now easily available in the market.

需要放松手腕时，可以在鼠标垫之类的软的物体上活动手腕，鼠标垫到处都可以买到。

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It says they should be placed on a separate sleep surface from their parents,without blankets, pillows or other soft bedding.

VOA: special.2009.08.26

Buff is also a soft cloth used to rub a surface until it looks bright and shiny.

VOA: special.2009.05.17

"The fact that the plane landed on a soft surface and that there was no fire helped keep the number of fatalities low, " he said.

BBC: Turkish plane crash in Amsterdam

Whether training on a soft surface like grass actually improves performance is unclear, said Dr. Reed Ferber, a professor of kinesiology at the University of Calgary.

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He said plans for Newbold Comyn had only ever considered the golf course, not the full extent of the Comyn, plans for Warwick Racecourse had only ever considered the racing circuit, not land within the course, and there were no plans to introduce controls in Abbey Fields or elsewhere in Kenilworth except the children's soft surface play area and the cemetery.

BBC: Warwick councillors vote through dog control orders