いろんなフォントで「metric_system」変換
Zen Old Minchometric_system
Yusei Magicmetric_system
M PLUS 1metric_system
Shippori Antiquemetric_system
Yuji Maimetric_system
Dela Gothic Onemetric_system
DotGothic16metric_system
Train Onemetric_system
Hira Minchometric_system
Potta Onemetric_system
Reggae Onemetric_system
Stickmetric_system
Zen Kurenaidometric_system
Kosugi Marumetric_system
Rampart Onemetric_system
Hachi Maru Popmetric_system
New Tegominmetric_system
RocknRoll Onemetric_system
Kaisei Decolmetric_system
「metric_system」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
