Photoelastometry
光测弹性术
🗣️ 情景例句
Rome wasn't built in a day.
冰冻三尺，非一日之寒。
A discontented man knows not where to sit easy.
不满足者坐无宁时。
He gets into the lift. It takes him down to the first floor.
他进入电梯。他乘电梯下到1楼。