Soniscope
脉冲式超声波探伤仪(测材料强度或裂缝深度用)
🗣️ 情景例句
It's completely beyond my grasp.
我完全摸不着头脑。
Never too old (or late) to learn.
学到老，学不了。
good-tempered elephant who will give many years of loyal service.
脾气温顺、能忠实为人服务多年的大象。