to and fro แปลว่า

ตัวอย่าง to and fro

• The ultrasonic sensor and strain gauge are driven to and fro toward the tube surface by high pressure air.

• Not only do people move to and fro across international space, their personal relationships change.

• The heart of the practice, the administration hub, lies behind it and, from this, staff radiate to and fro as they carry out their work.

• The actuated rotary joint propelled the leg to and fro, and thus, controlled the direction of motion.

• Upon returning to the stationary frame of reference, these cells are precisely the viscous vortices oscillating to and fro high above the ripples.

• The letters and telegrams sent to and fro, complete with ever-changing financial figures, are quoted extensively.

• It is a constant to and fro of patients.

• The inexorable persistence of the opening motive conjures up a grief-stricken widow, rocking to and fro in her overwhelming sorrow.