Vacuojunction
真空热电偶
🗣️ 情景例句
let me know.
告诉我。
The remembrance of past sorrow is joyful.
记住过去的不幸使人愉快。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群，这一进展比较容易。