laser n.激光器；
power n.控制力;影响力;操纵力;统治；
laser power的意思是激光功率；激光强度。
She\'s had laser surgery on her eye.
她做了眼部激光手术。
The department is blazing a trail in the field of laser surgery.
这个部门正在为激光外科学领域开辟一条新路。
She felt she was in a position of power.
她觉得她自己有权力。
It is not within my power to help you.
我是爱莫能助啊。
