| 1. | 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 . 按照杰索普和威尔士所论述的方法,根据记录下来的转动角,把主截面和主轴的位置画到一个极射赤平投影网上,可使上述过程简化。 |
| 2. | Milling an elliptical - axis on nc lathe center 在车削加工中心实现椭圆轴的铣削加工 |
| 3. | Draw the x axis and the y axis on the panel figure 在panel图上绘制x坐标轴和y坐标轴。 |
| 4. | Influences of transverse bias of arch axis on the arch ring behavior under static loads 拱轴线横向偏离对拱圈静力行为影响 |
| 5. | 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,对尺寸大,长度大,形状复杂的部件,必须正确支撑其关键位置,以防产生弧垂,也可以将其长轴竖直悬挂。 |
| 6. | 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 假定社会是一列火车,礼仪就好比轨道,火车只能沿着它隆隆前进;假定社会是一辆马车,礼仪就好比轮子与轴,马车只有靠它们才能滚滚前进。 |
| 7. | 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 控制力由喷流作用力产生,在主动段的初始段( 0 . 385 3 . 385秒)控制弹体的姿态,使弹轴维持在初始方向上,从而减少初始干扰,减小落点散布(飞行时间约170秒) ,提高精度。 |
| 8. | 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 摘要考虑了热对提高轴类件设计精度的影响,并通过传统导热微分方程法和一般传热学理论对主轴在运动时热分布进行了分析,指出了传统热微分方程解法复杂,从解析式中难以看出温度分布规律,运用传热学理论解法简单明? ,结果易于反映各参数关系,精确度较高,实用性强。 |