いろんなフォントで「central_heating」変換
Zen Old Minchocentral_heating
Yusei Magiccentral_heating
M PLUS 1central_heating
Shippori Antiquecentral_heating
Yuji Maicentral_heating
Dela Gothic Onecentral_heating
DotGothic16central_heating
Train Onecentral_heating
Hira Minchocentral_heating
Potta Onecentral_heating
Reggae Onecentral_heating
Stickcentral_heating
Zen Kurenaidocentral_heating
Kosugi Marucentral_heating
Rampart Onecentral_heating
Hachi Maru Popcentral_heating
New Tegomincentral_heating
RocknRoll Onecentral_heating
Kaisei Decolcentral_heating
「central_heating」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
