One X-ray laser already exists in an underground facility at the Stanford Linear Accelerator Laboratory, where it spans several football fields in length.
We were short of equipment, including laboratory materials and spare parts for X-ray machines.
我们缺乏设备，包括缺乏化验材料和X光机的零部件。
3
Methods Retrospective analytical method was used to investigate pattern distribution, age, course, main laboratory index and X-ray stage of 475 ra patients.