Using the harmonic balance method to solve the equation,at last the two scrip catastrophe model of the free span of submarine under the excited vortex inducing vibration with the current effect was obtained.
在考虑管道非线性因素下,建立悬空管道的横向振动方程,并采用谐波平衡法对方程求解,可得出洋流涡激作用下海洋悬空管道横向振动失稳的双尖点突变模型,由此导出悬空管道失稳条件。
A Study on the double crisis vertex in a two-parameter plane;
两参量平面上双重激变尖点研究
Track synthesis of planar link mechanism that passing through two additional cusps;
附加通过两个尖点的平面连杆机构的轨迹综合
But its a pity that all existed B_spline methods cannot reconstruct complicated surfaces with cusps and arrises.
B样条方法具有良好的局部可控性和易解决参数连续性等优良性质 ,但已有的B样条方法还不能重建有尖点和棱角的曲面 。
The cusp catastrophe theory was described.
阐述了尖点突变理论,建立了地震信号尖点突变模型,并将其转化为尖点突变的标准形式。
To meet the need of high accuracy in NC machining,several errors and its cause have been analyzed from actual geometric angle of tool because tool tip of NC programming differs from cutting point of tool.
根据数控加工高精度制造的需要,从刀具实际几何角度分析编程刀尖点与切削刃切削点不重合而产生加工误差的几种情况和原因,阐明根据数控系统的补偿原理减小这种误差的基本方法和G41,G42,G40指令的应用技巧,对优化编制数控加工程序、保证加工精度有积极作用。
The Tool Tip Offset in NC Turning;
研究了刀尖点与基准点运动轨迹之间的关系,揭示了刀具位置补偿的实质,提出了计算补偿量的具体方法,阐明了刀具位置补偿的建立、补偿及取消的全过程。
The amount of track points, including the double cusp points, which could be mostly realized by this kind of synthetic problems, was analyzed.
分析了包括双尖点在内，该类综合问题最多能实现的轨迹点数目。
Having a sharp point or tip.
尖的,尖锐的有尖点或尖端的
Tapering gradually to a sharp point, as the tips of certain leaves.
尖的逐渐尖细至一尖点，如某些树叶的尖端
The two parties differ very sharply from each other
双方存有尖锐的分歧。
pierce with a sharp stake or point.
用尖锐的树桩或者尖锐点刺穿。
an arch with a pointed apex.
有一个尖锐的顶点的拱。
a convex shape that narrows toward a point.
向一个端点尖起的凸形。
diameter of tip circular-arc juncture circle
齿尖圆弧衔接点圆直径
A cusp is also called a stationary point or point of retrogression gression.
尖点也叫做平稳点或逆行点。
reversible steel
双尖松土锄铲, 翻换松土锄铲
cock saddle feather duster with plastic coated rattan handle
包塑料藤柄双长尖鸡毛帚
A Taxonomic Study on Lonchopteridae from China (Diptera);
中国尖翅蝇科的分类学研究（双翅目）
Growing Crack Tip-fields on Anisotropic Bimaterial Interface
各向异性双材料界面裂纹扩展裂尖场
Treatment experience of 14 cases of congenitally missing second premolar
第二双尖牙先天缺失14例治疗体会
This characteristic presents a sharp contrast to the preceding one.
这个特点和前一个特点是尖锐的对比。
From 7 to 9 o'clock is rush hour.
七点到九点是上班的尖锋时刻。
After treatment the changes of dental arch width in first and second premolar region were larger than that of cuspid and first molar regions.
上颌第一、二双尖牙间各自宽度较尖牙间、一磨牙间宽度增加显著。
The Method of Predicting the Width of Unerupted Permanent Canines and Premolars for Qingdao Adolescent
青岛地区青少年尖牙、双尖牙近远中宽度预测的研究