X-ray diffraction pattern features strong reflection on the odd basement layers and weak one on the even basement layers.

射线衍射谱的特征是基底奇数层反射强，而偶数层反射不明显。

youdao

Take the elevator to the basement. Go down the hall and turn right. The X-ray room will be on your left.

先搭电梯到地下室。顺著走廊走到底右转。X光室就在你的左手边。

youdao

It also closed the private Spanish Hospital, a complex that covers an entire city block, after waters rushed into the basement, cutting power and destroying X-ray machines and other diagnostic equipment.

NPR: Argentina: Flooding From Torrential Rains Kill 52