Spectra Baby USA creates high-performing pumps that allow you to pump, store, and feed with fewer steps and more comfort. Our products are backed by IBCLC lactation experts who offer …

2. The team studied the spectra, or chemical signatures, of the light from 146 white dwarfs located within a few hundred light-years of Earth. 研究 小组 研究 了 光谱， 即 光线 的 化学 特征。 光 …

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In most cases, opaque and transparent spectra coexist offering both the possibility of pitch detection and the ambiguity of focus (music example 4).

Medical Definition spectrum noun spec· trum ˈspek-trəm plural spectra -trə or spectrums 1 a

希望这份文档能帮助您清晰地理解“spectrum”和“spectra”之间的区别及其在实际应用中的正确使用方法。

Sep 9, 2025 · Scientists often classify spectra based on the key light-matter interactions they represent and how they are used. All spectra show basically the same thing: how brightness …

Molecular spectra can be obtained due to electron spin states (electron paramagnetic resonance), molecular rotations, molecular vibration and electronic states.

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Spectrum, in physics, the intensity of light as it varies with wavelength or frequency. An instrument designed for visual observation of spectra is called a spectroscope, and an instrument that …