Diffractometers
(diffractometer 的復(fù)數(shù)) n. [光] 衍射計(jì)
??? 情景例句
Grandma, I bet you have a lot of stories to tell.
奶奶，我敢打賭你會(huì)說(shuō)很多故事。
When the belly is full, the bones would be at rest.
飽暖圖安逸。
has spent his lifetime studying active volcanoes and deep caves in all parts of the world.
花了畢生的精力來(lái)研究世界各地的活火山和探洞。