X光能透過衣服、木塊、人體等等,但它透過各種物體的能力是不一致的,主要要看被透過的物質的化學組成;化學組成不同,被透過的程度亦不同。人體的各部組織,其化學組成雖不一致,但有些組織,特別是臟器、血管、肌肉以及軟骨,它們對X光的透過能力沒有什么差别。某些不易被X光透過的 X-rays can pass through clothes, wooden blocks, human bodies, etc., but its ability to penetrate various objects is inconsistent. It mainly depends on the chemical composition of the substances that are transmitted. The chemical composition is different and the degree of penetration is different. Although the chemical composition of various tissues of the human body is inconsistent, some tissues, especially organs, blood vessels, muscles, and cartilage, do not differ in their ability to transmit X-rays. Something not easily transmitted by X-rays