speed check的相关资料：
临近单词
speeding
speed
speed rate of food's deterioration
speed control with constant torque
speed of limit rolling bear-ings
speed control by electrical engine
SPEEDO Men's Comfort Massage Slide
speed and reactive-power control
speed - differential oscillation
SPEED or FREQUENCY MATCHING DEVICE
Speed in performance or movement.
speed-up passenger coach bearings
