The plumbline is always perpendicular to the horizontal plane.

铅垂线总是垂直于水平面的.

《现代英汉综合大词典》

The horizontal plane sometimes is referred to as the transverse plane.

水平面有时也称为横断(切)面.

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A vertical line is drawn normal to a horizontal plane.

垂直于水平面画一条垂直线.

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Cases with clockwise horizontal plane T loop may easily suffer from cardiac neurosis.

环顺转者易于发生心脏神经官能症.

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The legs should be positioned in the same horizontal plane, not on edge.

安装时每一段必须在同一水平面上, 还有就是不要安装在边缘.

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When supporting, as far as possible face plate's working surface will adjust in the horizontal plane.

支承时, 尽量将划线平台的工作面调整到水平面内.

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Of a source. The luminous flux emitted above [ below ] a horizontal plane passing through the source.

对光源而言. 高于 [ 低于 ] 通过光源的水平面而发射的光通量.

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Objective : To understand relation between the clockwise horizontal plane T loop in vectorcardiogram ( VCG ) and myocardial ischemia.

目的: 弄清心向量图(VCG)横面T环原发性顺钟向运行 ( 顺转 ) 与心肌缺血的关系.

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A horizontal plane divides the body into superior ( upper ) and inferior ( lower ) portions.

水平面将身体分为上 ( 上面 ) 和下 ( 正面 ) 两部分.

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