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.

• The whole process was repeated a few times before beginning to rock to and fro in this position.

• A computer stores and processes information; linked with other computers on a computer network, it can also pass information to and fro.

• The audience is drawn into the action and there is a relaxed flow of communication to and fro.

• The "to and fro" motion of electrons near the grid contributes, together with the electromagnetic energy flow, to the feedback of the microwave generator.

• Another hydraulic actuator enabled the hip to move to and fro.

• The rising plumes swing to and fro and the upper flux concentration moves between them.

• Only on the forestage can people hurry to and fro, as in a city street.