triangular-pitch三: three解: understand; see形: form; shape节距: pitch; step节距: pitch; step◇节距规 pitchometer; 节距检验器 pitch tester下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:三解形节距，即可在微信中查询翻译
