YOU SAID:
The vertical displacement also increased from 1 to 18 stages due to the effect of parametric excitation when there is up and down motion in the left figure.
INTO JAPANESE
垂直方向の変位も、左図に上下運動がある場合のパラメトリック励起の影響により、1から18ステージに増加しました。
BACK INTO ENGLISH
The vertical displacement also increased from 1 to 18 stages due to the effect of parametric excitation when there is vertical movement in the left figure.
INTO JAPANESE
左の図に垂直方向の動きがある場合のパラメトリック励起の影響により、垂直方向の変位も1から18ステージに増加しました。
BACK INTO ENGLISH
The vertical displacement also increased from 1 to 18 stages due to the effect of parametric excitation when there is vertical movement in the left figure.
That didn't even make that much sense in English.