本文针对横剪机组现行设备存在的问题，论述了自动定尺控制系统的设计及使用效果。
This article, in view of problems existing in horizontal cutting machine, expounds the design and applicable result for the automatic cutting length control system.
他拿出一把尺，将尺横放在拿掉壶盖的壶颈上。
He took a ruler and laid it across the neck of the lidless pot.
另一面的管道地板是没有漆过的木板，两边是窄窄的砖墙。三尺宽的天花板弯曲成拱形。看上去像一个横放着的烟囱。
The crawl space beyond had a floor of unpainted, unvarnished wood, and narrow walls of brick. The three-foot ceiling was curved in an arch. It looked like a chimney lying on its side.
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