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oblique angle 【數學】斜角。

oblique sailing

A two - dimensional plain strain finite element model of infinite plate is developed to investigate the ultrasonic wave propagation and scattering on three kinds of cracks : parallel to the surface , 450 oblique angle to the surface , and quarter - circle 摘要建立了無限長板的具有吸收邊界的二維平面應變有限元模型,在研究了脈沖超聲波在無限長板中傳播的基礎上,對板中平行于表面的裂紋、與表面成45的斜裂紋和四分之一圓周弧形裂紋三種情況的脈沖超聲波散射進行了重點研究。

The laser radar sub - system determines the heights of the tsp according to the slant height and the oblique angle measured by the laser range finder and the electronic theodolite simultaneously . by lucubrating the motion law of tsp , we decided to compute decent velocities with least - squares procedure & two ranks curve fitting 地面激光雷達跟蹤測量分系統根據測量到的斜距離和俯仰角確定末敏彈傘彈系統的高度,在深入研究末敏彈穩態掃描過程的運動規律后,通過最小二乘法的二階分段曲線擬合,計算出落速。

In the end , we used this procedure to analyze the influence of the oblique angle to the bearing points and inter - force , and discuss the influence of the ratio ( the bending moment to the wrest moment ) to the skew bridge 最后利用該程序分析了斜交角對支點反力以及梁內力的分布影響,討論了彎扭剛度比對格柵梁的影響。

Turret side armor and barbette armor would usually be hit at a more oblique angle , usually circa 30 - 45 degrees or more , though the very center of the barbette could be hit at near right angles 雖然炮座裝甲正中區域有可能被幾乎垂直擊中,但通常炮塔的側面和炮座裝甲被擊中時的角度會較傾斜,約30 45度或以上。

Oblique angle fillet weld 斜角角焊縫