straight-Line direction 直线方向函数
shear line direction 修剪线方向
line of direction 方向线 ; 标的目的线
in-line direction 纵线方向
cross line direction 垂直测线方向
line direction histogram 线条方向直方图
In Marine seismic data, the in-line direction is that in which the recording vessel tows the streamers.
在海上地震数据采集中，纵测线方向是记录船拖曳拖缆的方向。
The displacement vector for surface relief was determined to be near the invariant line direction using electron back scattering diffraction method.
本工作应用背散射电子衍射技术测得产生浮突的位移在不变线方向附近。
Helical port also produces swirl by airflow interaction of valve gap and cylinder wall, so swirl number depends on helical line direction of relevant cylinder center.
螺旋气道通过气门间隙与缸壁的气流相互作用也产生涡流，因此，涡流数取决于相应气缸中心的螺旋线方位。
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