basic angle的中文,翻译,解释,例句

# basic angle

basic angle的基本解释
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In view of the tedious and mistakable manual calculation in measuring Gauss projection,coordinate zone transformation and meridian convergence,an itera-tive approximation method is adopted and programmed by BASIC to imple-ment the direct and converse calculation of Gauss projection and computer cal-culation of meridian convergence angle.

Also, calculate the distance of a line, calculate the mid point of a line, calculate the mid point of an arc, convert radians to degrees and vice versa, send characters to the AutoCAD command prompt, add single and multiple-line text to a drawing, add a new layer, calculate the slope and angle of a line, switch to model and paper space, check for existence of a block, see if a block has attributes, search and replace block attributes/single-line text/multiple-line text, count/erase/highlight/de-highlight specified number of a specified object, etc, etc. Doing each function with straight Visual Basic would require several lines of code, but with CAD.OCX only a minimal amount of code is required!

By Visual Basic 6.0 program, taken the distance between hole 200mm and buried depth 120～150mm as the optimization goal, the most optimum parameters range of the mechanism was obtained as follows: the initial angle between planet frame and the line formed from spraying-fertilizer needle-tip and planet wheel axle was -45°～-40°, the initial angular displacement of planet frame was 40°～50°, the distance between spraying-fertilizer needle-tip and the planetary gear axle center was 280～300mm, simultaneously, the semi-major axis of elliptic gear was 29.364mm, the teeth quantity was 23, the ratio of semi-minor axes and semi-major axis was 0.958, the radius of circular gear was 25mm.

Base spiral angle：基圆螺旋角

14. Base radius 基圆半径 | 15. Base spiral angle 基圆螺旋角 | 16. Basic rack 基本齿条

base stone：基石