Provided are a low-noise, high-performance magnetic recording medium obtained by fining the size of the grains in a magnetic film, and a magnetic recording medium of low thermal demagnetization obtained by controlling the magnetic grain size in a small range. If the variation in the text contents is larger than the predetermined value and occurs conforming to the predetermined rule, the method signifies that the region displays the static images corresponding to a scoreboard. Each agent has a head flag, a tail flag, and a next agent field, thereby allowing the agents to be arranged into linked lists. The flexible cableouter sleeve allows for the complex routing scenarios necessary in the congested spaces surrounding aircraft accumulators.