Tube core concrete was formed with vertical vibrating technique.

管芯混凝土采用立式震动工艺成型；

youdao

In this paper, a method of measuring the input mechanical impedance of the array element (longitudinal vibrating transducer) with square radiation head by using impulse sound tube is proposed.

本文提出了以声脉冲管测量辐射头为方形的一种阵元(纵向振动换能器)的输入力阻抗的方法。

youdao

Suitable high frequency magnetic conductive inductor was made through analyzing the high frequency vibrating circuit of electron tube and doing an experiment of magnetic conductive inductor.

通过对电子管高频振荡线路的分析和对导磁体感应器的试验，制作了合适的高频导磁体感应器。

youdao

One is to change the length of the tube, and thus the length of the vibrating air column.

NPR: Young Tuba Player Gets Nod from Phila. Orchestra

The vibrations of the lips, focused and amplified by the mouthpiece and directed into the tube, cause the column of air inside the tube to vibrate, and as in all wind instruments, the vibrating air column produces the sound of the instrument.

NPR: Young Tuba Player Gets Nod from Phila. Orchestra