Yet, each year millions of Americans strive for that perfect tan and even spend their hard earned money to purposefully expose themselves to artificial sources of ultraviolet radiation.
然而，每年都有数百万计的美国人为完美的棕色皮肤奋斗，甚至用他们辛苦挣来的钱让他们暴露于人工的紫外线辐射源。
A software package for fast computation of electromagnetic scattering and radiation characteristics of large complex perfect conducting object is introduced in this paper.
介绍了一种可用以快速计算任意形状的电大尺寸导体目标散射和辐射特性的软件包。
Their ability to survive extremes of radiation, temperature and pressure, make them perfect space travelers and are the most convincing evidence yet of an extraterrestrial life form.
它们对高辐射、极端的温度和压力的忍受力，使它们成为了出色的太空旅行者，这也是外星生命体存在的最有力证据。
应用推荐