The Study on Quasi-plane double enveloping Worm Gearing of Profile Shifting;
变位形式的准平面二次包络环面蜗杆传动研究
Analysis on Method Establishing High Accuracy Datum Plane;
高精度基准平面建立方法分析
Aim To establish the path independent integral and its dual form of energy type, and to determine the singularity order of stresses near the crack tip in plane quasicrystals.
目的建立平面准晶中能量型路径守恒积分及其对偶形式，并确定准晶裂纹体裂尖应力奇异性阶数。
Study on affection of the angle errors of pentagonal prism on establishing datum plane;
五角棱镜角度误差对建立大尺寸平面基准的影响
According to the operating principle and characteristic of pentagonal prism, it is analyzed that the fabrication error of the prism angles and the effect of lateral displacement of exit beam when the prism has a motion relative to the incident beam on the accuracy of the datum plane to be established.
从五角棱镜的原理和特性出发，叙述了利用五角棱镜扫描建立大平面基准过程中，由于加工角差和当五角棱镜相对入射光束有相对运动时其出射光束的横移对平面基准的影响，提出了用衍射成像技术消除光束横移，数据计算修正棱镜的角度差的影响。
parallel to or in the plane of the horizon or a base line.
与地平线或者基准线平行，在地平面或者基准平面上。
Automatic-leveling system for base-plane of large-size photoelectric equipment
大型光电设备基准平面自动调平系统
changing the ground level to a smooth horizontal or gently sloping surface.
改变地水准平面为光滑的水平或者倾斜的表面。
The hypothetical surface of the earth that coincides everywhere with mean sea level.
大地水准面处处与平均海平面一致的大地水准面
at right angles to the plane of the horizon or a base line.
与水平面或者基准面成直角。
They preach peace while prepare for war.
他们一方面鼓吹和平，一方面准备战争。
The plane strain theory for one-dimensional hexagonal quasicrystals in aperiodical plane
一维六方准晶非周期平面内的平面应变理论
The word horizontal is applied only to the plane which is tangent to the ground-level equipotential surface.
地平面这个词则只表示与地面水准等位面相切的平面。
DFPG Digital Flat Panel Group
数字平面显示标准工作组
Medium green, plain/ red back. Standard.
中绿色叶，平坦叶面，红色叶背。标准型。
altitude over target
以目标平面为基准的高度
Dark green, plain, pointed. Standard.
深绿色叶，叶面平坦，叶型普通。标准型。
Criterion of the Planar One-bend Routing Problem with Algorithm;
平面单折布线的判别准则与算法实现
Evaluation of True Horizontal Plane as Reference Planes under Natural Head Position
自然头位下真性水平面作参考平面的准确性评价
A solid bounded by two parallel planes and such a surface, especially such a surface having a circle as its directrix.
圆柱体由两个平行平面和这样的表面，特别是有一个圆作为其准线的平面所形成的柱体
The operating standard for railway shunting--Railway shunting the operating standard for the shunting neck
GB/T7178.5-1996铁路调车作业标准铁路调车平面牵出线作业标准
Improving the technical level of our railway engineering construction standard in an all-around way and trying to catch up with the world first class level;
瞄准世界一流 全面提升我国铁路工程建设标准技术水平
Quietly she faced her captors. "I am ready,"she said.
她平静地面对着追捕者。“我准备好了,”她说。