This rotation can be simplified by plotting the positions of the principal sections and principal axis on a stereographic net as described by jessop and wells from the rotations recorded . 按照杰索普和威爾士所論述的方法,根據(jù)記錄下來的轉(zhuǎn)動角,把主截面和主軸的位置畫到一個極射赤平投影網(wǎng)上,可使上述過程簡化。
Milling an elliptical - axis on nc lathe center 在車削加工中心實(shí)現(xiàn)橢圓軸的銑削加工
Draw the x axis and the y axis on the panel figure 在panel圖上繪制x坐標(biāo)軸和y坐標(biāo)軸。
Influences of transverse bias of arch axis on the arch ring behavior under static loads 拱軸線橫向偏離對拱圈靜力行為影響
Hence , large , long , and complex - shaped parts must be properly supported at critical positions to avoid sagging or preferably are hung with the long axis on the vertical 因此,對尺寸大,長度大,形狀復(fù)雜的部件,必須正確支撐其關(guān)鍵位置,以防產(chǎn)生弧垂,也可以將其長軸豎直懸掛。
If society were a train , the etiquette would be the rails along which only the train could rumble forth ; if society were a state coach , the etiquette would be the wheels and axis on which only the coach could roll forward 假定社會是一列火車,禮儀就好比軌道,火車只能沿著它隆隆前進(jìn);假定社會是一輛馬車,禮儀就好比輪子與軸,馬車只有靠它們才能滾滾前進(jìn)。
The controlling force developed by the jets is working at the beginning of the initiative trajectory ( 0 . 385 - 3 . 385s ) to control the attitude of the projectile to keep its axis on the direction of launch - direction , so as to reduce the effect of initial disturbance 控制力由噴流作用力產(chǎn)生,在主動段的初始段( 0 . 385 3 . 385秒)控制彈體的姿態(tài),使彈軸維持在初始方向上,從而減少初始干擾,減小落點(diǎn)散布(飛行時(shí)間約170秒) ,提高精度。
The influences of thermal effect of an axis on its design precision were discussed and the temperature distribution of a rotating axis was obtained by the conventional heat transfer equations that needed a complex solving procedure and gave a blurry distribution rule 摘要考慮了熱對提高軸類件設(shè)計(jì)精度的影響,并通過傳統(tǒng)導(dǎo)熱微分方程法和一般傳熱學(xué)理論對主軸在運(yùn)動時(shí)熱分布進(jìn)行了分析,指出了傳統(tǒng)熱微分方程解法復(fù)雜,從解析式中難以看出溫度分布規(guī)律,運(yùn)用傳熱學(xué)理論解法簡單明? ,結(jié)果易于反映各參數(shù)關(guān)系,精確度較高,實(shí)用性強(qiáng)。