Fast computation formulae of the non_central gravitational vector and gravity tensor are deduced and respective algorithms are proposed.
给出了球谐函数不含阶次 (n,m)调制的递推公式 ,推导出非心引力矢量、引力张量的快速计算格式 ,给出了相应的算法。
Implement and application of the wire alignment system at Xinfengjiang dam;
引张线系统在新丰江大坝的实施及运用
It discussed that the build method of automatic monitoring system for wire alignment in dam.
指出了大坝变形监测系统中自动化监测与人工观测方法的差异,对引张线自动监测系统的构建方法进行了论述;通过分析说明了试图采用双向引张线监测垂直位移尚不可取;分析表明,引张线端点外延将明显降低引张线准直系统的精度,长的引张线应避免采用端点外延布置;采用相对测量方法、配合双金属管标的液体静力水准系统是一种灵活、简便的高精度垂直位移自动化监测系统;分析比较测斜仪和垂线的精度表明,试图利用测斜仪来取代垂线的想法是不可行的。
A floatless tension wire auto-monitoring system for measuring horizontal displacement of dam is developed on the basis of overcoming the defects of floating tension wire auto-monitoring system,and is experimented with success in Gezhouba hydroproject.
介绍了一种新型大坝水平位移监测系统———无浮托引张线自动监测系统。
Through analysis, the author held that tension wire alignment method is an prior choice for horizontal displacement on top of lock wall.
船闸闸墙水平位移是船闸性态的综合反映,分析了引张线法进行闸墙顶部水平位移监测是优选方案,总结了引张线法进行某船闸闸墙水平位移监测的原理、计算方法、数据分析和维护检修的经验。
Three Dimensional Cartesian Representation of Gravity Vector and Gravity Tensor
引力向量与引力张量的三维笛卡儿坐标表示式
The Energy-Momentum Pseudo-tensor of the Cylindrical Gravitational Waves and Gravitational Solitons;
柱面引力波和引力波孤子的能量动量赝张量
Study on the Energy-Momentum Tensor of Electromagnetic Fields in External Region of Spherical Symmetric Mass and in Gravitational Waves;
球对称质量外部区域和引力波场中电磁场的能量动量张量
High-Frequency Gravitational Wave Propagating Through the Vacuum Robertson-Walker Spacetime and Its Energy-Momentum Pseudo-tensor;
在真空Robertson-Walker时空中传播的高频引力波及其能量动量赝张量
The Energy-Momentum Tensor of Gravitational Waves of the Double Polarized States and Electromagnetic Fields in Gravitational Waves;
双极化态引力波及其波场中的电磁波的能量动量张量
Relic Gravitational Waves Energy-Momentum Pseudo-Tensor in Mφller-Landau Expression and Its Asymptotic Behavior of High-Frequency
遗迹引力波能量-动量赝张量的Mφller-Landau表述及其高频渐近行为
The power of attracting or of arousing interest.
吸引或引起兴趣的力量
maxwell energy stress tensor
麦克斯韦能量应力张量
Relic Gravitational Wave and Positive Definite and Expression of Their Energy-Momentum Pseudo-Tensor in De sitter Background Spacetime of the Curve;
De sitter弯曲时空中遗迹引力波及其能量动量赝张量的表述和正定性问题
an instrument for measuring strain in a surface.
测量表面张力的仪器。
plasma pressure tensor
等离子体的压力张量
a tension on the caBle of 50 pounds.
50 磅线缆的张力测量
"As the universe expands, these galaxies stay the same size. This is because gravity is more powerful than dark energy, so the galaxies can't be pushed apart."
当宇宙扩张之时,星系的大小保持不变。这是因为引力比"暗能量"更强大,所以星系不会被推开。
This disk appeal to the under-25 market.
这张软盘对25岁以下的顾客有吸引力。
Methods of Yarn Pulling and Yarn Tension's Stabilization in Carpet Tufting Machine
地毯簇绒机纱线牵引和张力稳定方法
Conservation of Mass. Conservation of Momentum. Stress Tensor.
质量守恒，动量守恒，应力张量。
drawbar pull - weight ratio
牵引杆拉力-重量比
the power to entice or attract through personal charm.
能吸引或诱惑人的力量。