·2,447,543篇论文数据,部分数据来源于NoteExpress
从中可得到菲涅耳衍射区的许多特性。
It is shown that many properties of diffraction in the Fresnel region can be obtained.
通过细丝后在其后菲涅耳衍射区留下阴影,测量阴影宽度可得细丝直径;
The diameter of a thin wire was obtained by measuring the shadow in the Fresnel diffraction zone.
运用离子选择性电极(ISE)和X射线衍射分析(XRD)方法,对云南昭通威信地方病氟中毒区的氟源进行了研究。
The sources of the endemic fluorosis in Weixin, Zhaotong of Yunnan Province has been studied using an ion selective electrode(ISE) and X-ray diffraction analysis(XRD).
应用推荐