笛(di)卡(ka)兒坐(zuo)標系(xi)(xi)(xi)(xi)(xi)分為左手(shou)(shou)(shou)系(xi)(xi)(xi)(xi)(xi)和右手(shou)(shou)(shou)系(xi)(xi)(xi)(xi)(xi)。配管設計柔(rou)性(xing)分析(xi)采用右手(shou)(shou)(shou)系(xi)(xi)(xi)(xi)(xi)，右手(shou)(shou)(shou)坐(zuo)標系(xi)(xi)(xi)(xi)(xi)這名詞(ci)是由右手(shou)(shou)(shou)定則(ze)而來的。先將(jiang)右手(shou)(shou)(shou)的手(shou)(shou)(shou)掌與(yu)(yu)手(shou)(shou)(shou)指(zhi)伸(shen)直，然(ran)后，將(jiang)中指(zhi)豎(shu)起(qi)與(yu)(yu)食(shi)(shi)指(zhi)呈直角關(guan)系(xi)(xi)(xi)(xi)(xi)，再(zai)將(jiang)大(da)拇指(zhi)往上指(zhi)去，與(yu)(yu)中指(zhi)、食(shi)(shi)指(zhi)都(dou)呈直角關(guan)系(xi)(xi)(xi)(xi)(xi)，則(ze)大(da)拇指(zhi)、食(shi)(shi)指(zhi)、與(yu)(yu)中指(zhi)分別表(biao)示(shi)了右手(shou)(shou)(shou)坐(zuo)標系(xi)(xi)(xi)(xi)(xi)的X軸(zhou)，Y軸(zhou)，與(yu)(yu)Z軸(zhou)，如(ru)圖17.3所示(shi)。同樣，用左手(shou)(shou)(shou)也可以(yi)表(biao)示(shi)出左手(shou)(shou)(shou)系(xi)(xi)(xi)(xi)(xi)。