step-by-step drive

基本解释

Adopt advanced microcomputer controller and step-by-step motor to drive and control the length of bag with stable performance and accurate testing. Meanwhile, it is easy to operate.
採用先進的微電腦控制器，敺動步進電機控制袋長及商標定位，性能穩定、調整方便、檢測準確。
For Circuit design, single chip AT89C2051 was adopted to be the controller for MCU module. Beside this, drive circuit for step-by-step motor and the photoelectric sensor were designed.
電路設計則以AT89C2051控制器爲核心搆成單片機系統，實現對步進電機的敺動和光電信息的採集。
The quenching machine tool will use frequency conversion speed-regulating motor, step-by-step motor or servo motor, and drive through ball lead screw, with motion speed being even and precise.
淬火機牀的發展採用變頻調速電機，步進電機或伺服電機，通過滾珠絲杆傳動，移動速度均勻、精確。

In the summer of 2010, Starbucks took things a step further by dropping Tall drinks from their drive-through menus, leaving the displayed choices of just Grande (16 oz.) and Venti (20 oz.).
FORBES: The Shortsighted Upsell