浮点数表示法，含部份换轴之高斯消去法，使用矩阵大小之计算尺度调整，带状及三角对角系统，LU分解。
Floating point representation, Gaussian elimination with partial pivoting, scaling of computations with matrix size, banded and tri-diagonal systems, LU decomposition.
使用XTR01型微机控制电液伺服试验机，采用梯级加载法，对煤岩进行了三轴蠕变试验。
Triaxial creep tests on coal rocks are carried out by Step Method and the XTR01 electric-fluid servo compression machine.
此外还介绍了用两种三轴应变计进行岩体应力测量的结果以及能考虑自重边界元法的实际应用。
Results of measurements on rock mass stresses by two kinds of triaxial strain cells are reported. Finally the possible applications of BEM with gravity are discussed.
应用球面三角法和方向余弦矩阵法分别推导出双轴陀螺平台的支架误差公式，发现由这两种方法推导出来的公式计算结果是一致的。
Methods of spherical trigonometry and direction cosine matrix were applied respectively to derive the bracket error, and the two methods had the same error formula and the same calculation results.
本文采用三维刚粘塑性软件TFORM3对12V240曲轴RR法限制成形工艺及模具结构进行了设计分析。
The RR process of the 12V240 crankshaft and die structure are designed and studied using the TFORM3 software of 3D rigid plastic FEM.
本文给出了花键轴开式整体凹模挤压时挤压力计算的三维上限分析法。
A three dimensional upper bound analysis technique for calculating the extrusion pressure of a spline shaft was presented in this paper.
BP神经网络的系统误差修正方法的修正精度比球谐函数法提高约20%，有望用到球谐函数法不适用的三轴光电跟踪系统的系统误差修正中。
BP neural network system errors modifying method improves the precision than globe function method about 20% and may be used in three-axis photoelectric tracking system.
本文采用功率谱分析法讨论了作用在三轴汽车平衡悬挂承载部件上的动载荷问题。
By means of spectral analysis method, the problem of dynamic loads acting on the load-carring components of rear bogie suspension system of a truck is analysed in this paper.
应用微元法给出了在三维欧氏空间中质量曲线和质量立体对任意一条直线的转动惯量的计算公式，并给出了对坐标轴的转动惯量的简化计算公式。
Via an infinitesimal method, the author offers a computing formula for the moment of inertia of mass curves and mass cubes against any straight line in Euclidean space.
高压法三聚氰胺装置熔融尿素升压泵运行过程发生多起断轴事故，使装置多次出现非计划停工。
The packing axle seal of the melt urea pump leaked seriously, leading to many harmful effects, so we revamped the form of axle seal.
高压法三聚氰胺装置熔融尿素升压泵运行过程发生多起断轴事故，使装置多次出现非计划停工。
The packing axle seal of the melt urea pump leaked seriously, leading to many harmful effects, so we revamped the form of axle seal.
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