求出了螺旋磁场泵自由电子激光器中含电子相互作用的增益表达式，并进行了讨论。
The effect of electron interaction on gain of a free-electron laser pumped with a helical magnetic field is formulated.
它还有一颗活动的心脏，在电子泵的作用下跳动、完成身体的血液循环。它的人造血液也像人血一样携带氧气。
It also has a functioning heart that, using an electronic pump, beats and circulates artificial blood, which carries oxygen just like human blood.
它还有一颗活动的心脏，在电子泵的作用下跳动、完成身体的血液循环。它的人造血液也像人血一样携带氧气。
It also has a functioning heart that, using an electronic pump, beats and circulates artificial blood, which carries oxygen just like human blood.
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