一阶振型变化率
variation rate of the first modal
高阶振型
high-order vibration mode
Higher mode
higher mode of vibration
Higher modes
higher frequency models of vibration
High-mode
higher frequency modes of vibration
1.2一苯并异噻唑啉一3一酮
1
2—Benzisothiazoline—3—one
CC型一次表面
CC(Cross Corrugated) type primary surface
CU型一次表面
corrugated-undulated primary surface