The traditional method is that sampling 20 equidistance discrete voltages to calculate the virtual value . to gain the virtual value , we firstly average their square values , and then extract it 传统的计算有效值的方法是利用一个周期内等距离散的20个采样点的瞬时值进行求解，通过计算它们的均方根值来得到有效值。
D . move finger or object equidistant from you and client outside of own field of vision . slowly bring it back into field , asking client to state when it is first seen . repeat procedure for all visual fields and for both eyes 在检查者与受检者等距离处移动手指或物体至自身视野外。缓缓移进视野，告诉病人在第一眼看到手指或物体时就告诉检查者。各个方位重复操作，检查双眼。
This paper applied the character that linear subjective isometries preserve the geometric rank of a operator to characterize the onto isometries between compact operators space in weakly closed modules of nest algebras , and obtained the expressions of the isomtries 摘要利用算子的几何秩在线性等距映射下不变的性质研究了套代数弱闭模中紧算子空间的线性等距离映射，最后得到其空间实现形式。
If this measure does not work , it might be possible that the reflection fringes were slightly damaged during the transportation and cannot be completely restored . you can do the positioning in the counter direction as against the direction that the mouse is off the center point 如果上面的办法不行,则可能是声波屏在运输过程中的反射条纹受到轻微破坏,无法完全修复,你可以反方向相对与鼠标偏离的方向等距离偏离校准靶心进行定位
In trenchless detection of underground pipelines , a method has been introduced which employs fiber brag grating ( fbg ) sensors to detect curvature of the pipeline at discrete point and reconstructs the spatial trajectory of the pipeline by means of a newly developed reconstruction algorithm 摘要在非开挖地下管线探测中，利用光纤光栅传感器测得地下管线的等距离离散点曲率信息，通过空间曲线重建方法重建出地下管线的空间位置形状，是一种探索中的新方法。
A many comely nymphs drew nigh to starboard and to larboard and , clinging to the sides of the noble bark , they linked their shining forms as doth the cunning wheelwright when he fashions about the heart of his wheel the equidistant rays whereof each one is sister to another and he binds them all with an outer ring and giveth speed to the feet of men whenas they ride to a hosting or contend for the smile of ladies fair 众多俊美的宁芙611忽而挨近右舷，忽而凑近左舷，依依不舍地跟在华贵的三桅帆船两侧。她们将闪闪发光的身子盘绕在一起，犹如灵巧的轮匠在车轮的轴心周围嵌上互为姐妹的等距离的轮辐，并从外面将所有一切都用轮辋把她们统统箍住。这样就加快了男人们奔赴沙场或为博得淑女嫣然一笑而争相赶路的步伐。
Numerical examples , two cavities case , are provided to show the effect of wave number , distance between the centers of the cavities and the ground surface and distance between the centers of the cavities upon the dynamic stress concentration around the cavities edge and ground motion impacted by incident steady sh - wave 通过具体算例，讨论了与界面等距离的相邻二个圆孔对sh波的散射，给出了数值结果，并讨论了波数与圆孔至边界距离和二圆孔中心距离变化对动应力集中和地面运动的影响。
Two transducers b and c , which record the time when the shock wave front arrives , are placed on both sides of location ( a ) with equal distance , the average shock wave speed at location ( a ) can be calculated from the distance b to c and the time that the shock wave needs to travel from b to c . all the tested signals are stored on a pint - sized system of independent function 同时测速测压的方法是指在测取冲击波压力-时间曲线的同时，在被测点前后等距离处分别安装压力传感器，记录冲击波上升前沿到达的时刻，通过时间差来获取被测点处冲击波的平均速度。所有的测试信号都被记录在同一个小型的、能独立工作的测试系统中。
He unbuttoned successively in reversed direction waistcoat , trousers , shirt and vest along the medial line of irregular incrispated black hair extending in triangular convergence from the pelvic basin over the circumference of the abdomen and umbilicular fossicle along the medial line of nodes to the intersection of the sixth pectoral vertebr aelig ; , thence produced both ways at right angles and terminating in circles described about two equidistant points , right and left , on the summits of the mammary prominences 然后又反过来自下而上地依次解开背心长裤衬衫和内衣纽扣。他那双手的轨迹从参差不卷缩起皱的黑色体毛的中心线也就是自骨盆底到下腹部肚脐眼周围那一簇簇体毛，又沿着节结的中心线进而延伸到第六胸脊椎的交叉点，从这里又向两侧丛生，构成直角形，在左右等距离的两个点，即环绕乳头顶端形成的三角形收敛图形的中心线穿行。
