笛卡兒坐(zuo)標(biao)系(xi)(xi)(xi)分為左(zuo)手(shou)系(xi)(xi)(xi)和右手(shou)系(xi)(xi)(xi)。配管設(she)計柔性分析(xi)采用右手(shou)系(xi)(xi)(xi)，右手(shou)坐(zuo)標(biao)系(xi)(xi)(xi)這名(ming)詞是由右手(shou)定(ding)則(ze)而來的。先將右手(shou)的手(shou)掌與(yu)手(shou)指(zhi)(zhi)(zhi)(zhi)伸直，然后，將中指(zhi)(zhi)(zhi)(zhi)豎起與(yu)食(shi)指(zhi)(zhi)(zhi)(zhi)呈直角(jiao)關系(xi)(xi)(xi)，再將大拇指(zhi)(zhi)(zhi)(zhi)往上(shang)指(zhi)(zhi)(zhi)(zhi)去，與(yu)中指(zhi)(zhi)(zhi)(zhi)、食(shi)指(zhi)(zhi)(zhi)(zhi)都呈直角(jiao)關系(xi)(xi)(xi)，則(ze)大拇指(zhi)(zhi)(zhi)(zhi)、食(shi)指(zhi)(zhi)(zhi)(zhi)、與(yu)中指(zhi)(zhi)(zhi)(zhi)分別表示(shi)了右手(shou)坐(zuo)標(biao)系(xi)(xi)(xi)的X軸(zhou)，Y軸(zhou)，與(yu)Z軸(zhou)，如圖17.3所示(shi)。同(tong)樣(yang)，用左(zuo)手(shou)也可以表示(shi)出(chu)左(zuo)手(shou)系(xi)(xi)(xi)。