A new method for height finding using monopulse measurement based on stepped-frequency system is discussed in this paper for enhancing low-altitude detection of metric-wave radar.

为了提高米波雷达低空探测性能，本文讨论步进频率体制下，单脉冲测角的米波雷达测高方法。

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It is indicated that if the shoulder height of the stepped cross section piston ring is properly selected, its bearing capacity may be greater than that of the cir...

结果表明，只要台阶高度选择得合适，可使阶梯型活塞环的承载能力在整个磨损寿命阶段内都大于桶面活塞环的承载能力。

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This year, regulators have focused on the role high-frequency traders played in the May 6 "flash crash, " when some of the fast-moving firms stepped away from the market during the height of the turmoil.

WSJ: In Fast-Trading Trial, Protection for Goldman Sachs Secrets

She drew herself up to her full height as she said this and stepped between him and her much smaller friend.

FORBES: Everything You Need to Know About Life You Can Learn At The Playground