单词	span length
释义	span length 杆间距离,跨度距离
随便看	Single-Sign-On single sign -on Single sign-on model Single Sign Out single-siguon Single silicon single silk single silk covered single silk-covered single-silk covered single silk-covered copper wire single silk-covered enameled wire single silk covered wire single silk-covered wire single-silk-covered wire single silk enamel single-silk enamel Single silk enamel covered wire single-silk enamel wire Single-Silo Hard Site Defense single silt Fraunhofer diffraction single-simplex communication single-simplex operation single singal ranging single singal receiver