±Ë°£Á¤Á¤(ÏùÊàïÚïá) correction of gauge. maintenance of gauge
±Ë°£ÃøÁ¤(ÏùÊàö´ïÒ, gauge measure)
±Ë°£Æ²¸²(ÏùÊà - ) disorder of gauge
±Ë°£È®´ë(ÏùÊàüªÓÞ, gauge widening)
±Ë±¤(ÏùÎÄ) track panel
±Ë±¤°»½ÅÀÛ¾÷(Ïù±¤ËÖãæíÂåö, renewal work of track panel)
±Ëµµ(ÏùÔ³) track
±Ëµµ°È(ÏùÔ³Ëûù, strengthening of track stracture, track strengthening)
±Ëµµ°»½Å(ÏùÔ³ËÖãæ) tract renewal
±Ëµµ°ËÃøÂ÷(ÏùÔ³Ëþö´ó³) track inspection car, track recording car