The roller large end face run-out of tapered roller bearing (SDW) is an important quality index for tapered roller bearing.

圆锥滚子基准端面摆动SDW(端面侧摆)是圆锥滚子轴承的一项重要质量指标。

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It has been successfully used in the X-38 drogue chute and its supersonic pilot chute, the SDW main chute, its drogue chute and the PLER parachute.

在x—38计划的减速伞和超音速引导伞、在SDW减速稳定伞和主伞以及PLER伞上应用，均获得成功。

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This article introduces a kind of intelligent measuring system, which accords with the rule of measuring for tapered roller bearing, and can actualize auto-measuring for SDW and auto-picking.

介绍的圆锥滚子端面侧摆智能检测系统，符合圆锥滚子轴承检测规程要求，可以实现圆锥滚子端面侧摆自动检测和自动分拣。

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Cement producers like Southdown (53, SDW) and wallboard maker USG Corp. (51, USG) trade at less than ten times forward earnings in a market where their main products are in short supply.

FORBES: Time to buy some also-rans