182.如何进行道岔区段锁闭的试验？
["\u7b54\uff1a\u5c06\u67d0\u9053\u5c94\u533a\u6bb5\u4eba\u5de5\u5206\u8def(\u53cc\u52a8\u9053\u5c94\u5206\u522b\u5206\u8def\u4e24\u4e2a\u533a\u6bb5)\uff0c\u5355\u72ec\u64cd\u7eb5\u8be5\u533a\u6bb5\u5185\u6240\u6709\u9053\u5c94\u5747\u5e94\u4e0d\u80fd\u8f6c \u6362\u3002"]