时差: equation of time time differ ...声波: sonic wave; sound wave; acou ...计程仪: log; vialog声波计: audiometer超声波计: ultrasonoscope按计程仪: by the-log按计程仪的: by the log车辆计程仪: kilometer recorder for vehicles; kilometer recorders for vehicles船底计程仪: bottom log船尾计程仪: rail log船用计程仪: ship log船中计程仪: midshilog地磁计程仪: geomagnetic log电磁计程仪: electro-magneticlog; electromagnet log; electromagnetic log电动计程仪: electric log电计程仪: electric log; electriclog电气计程仪: electric log电子计程仪: electronic log放下计程仪: stream the log惯性计程仪: inertialog光学计程仪: optical log; opticallog航速计程仪: velocity log机电计程仪: electric log激光计程仪: laser log计程仪,纪录,圆木: log
