李子平教授指出，从医用X光机的角度来讲，它们的原理都是一样的。
Professor Li Ziping pointed out that from the perspective of medical X-ray machines, their principles are the same.
X光机不外乎三个部分，一个是球管，它发出X光放射源，X光穿过物质才能看得到。普通人肉眼常规普通光线看不到的东西，球管或者X线才能看到。
X-ray machine is no more than three parts, one is the ball tube, it emits X-ray radiation source, X-ray can be seen through the material. Ordinary human flesh and eyes can only be seen by the ball tube or X-ray if they cannot be seen by ordinary light.
第二个是要有高压变压器，高压变压器把普通的、一般的电压变成高压，然后将电压提供给球管去产生电子，然后再产生X光，这是第二部分。
The second is to have a high-voltage transformer. The high-voltage transformer turns ordinary and ordinary voltage into high voltage, and then supplies the voltage to the ball tube to generate electrons, and then generates X-rays. This is the second part.
第三部分则是控制器，由控制板来控制放多少X光量，这样所有X光机都逃不出这个控制，不管是X光还是CT，尽管它里面结构很复杂，但它们的结构应该是一样的。安检行李来到有X光的地方，X光就照一下，下面的接收器就接收了，照人体也是一样的。
The third part is the controller. The control board controls how much X-ray is put in, so that all X-ray machines cannot escape this control. No matter X-ray or CT, although its internal structure is very complex, their structure should be the same. When the security luggage comes to the place where there is X-ray, the X-ray will shine, and the receiver below will receive it, as well as the human body.
李子平教授认为安检的X关机所用的X光量，比人体照射的X光量要少，因为它不一定要看得非常清楚。安检的X光只看个大概，判断出这是什么形状的东西，那就可以了。所以安检X关机的X光量，会比人体的X光机和比医用的X光机要少。因此各位孕妈不必太过担心，可安心配合安检。
Professor Li Ziping believes that the amount of X-ray used in the x-switch of security check is less than the amount of X-ray irradiated by human body, because it does not have to be seen very clearly. The X-ray of the security check only looks at the general situation, and judges what shape this is, then it's OK. Therefore, the X-ray quantity of the security X-ray machine will be less than that of the human body and medical X-ray machine. Therefore, you pregnant mothers don't have to worry too much. You can cooperate with the security check.