1) pitching oscillation
俯仰振动，纵向振动，相对横轴振动
2) Pitch vibration
仰俯振动
3) pitching vibration
俯仰振动
1.
The ultrasonic transducer of TS2100 gold wire bonder was taken as the main object of study, impedance analyzer and LDV(Laser Doppler velometer) were taken as measuring equipments, to research systematically electrical characteristics and pitching vibration of the ultrasonic transducer.
(3)搭建了相应的实验测量系统，选择敲击方式激励换能系统，产生俯仰振动，用激光多普勒测速仪采集换能系统末端底部的速度信号，对速度信号进行统计功率谱分析，分析有无劈刀情况和肋环夹持不同状态下换能系统。
4) Transverse and Longitudinal vibration
横向和纵向振动
5) longitudinal vibration
纵向振动，轴向振动
6) longitudinal vibration
纵向振动
1.
Study of longitudinal vibration model of mine lifting container;
矿井提升容器纵向振动模型研究
2.
Experimental study on longitudinal vibration characteristics of pendulum assembly in straight hole;
直井眼钟摆钻具纵向振动特性的实验研究
3.
ANSYS-based finite element analysis method of longitudinal vibration of drilling string and its application;
基于ANSYS的钻柱纵向振动有限元分析及应用
补充资料：俯摄照片
俯摄照片(Bird’s-eye-view photography)指的是从高处往下俯视宽广的范围进行拍摄的照片。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条