With the greater availability of lithium fluoride prisms, the use of this spectral range will probably be considerably extended . 由于更多地使用氟化锂棱镜,这个光谱区域的应用可能会有更大的发展。
The lush vegetation shows large infrared reflectance, which the surrounding geological areas are only as bright as that shown on the green spectral record . 茂盛的植被具有很高的红外反射率,而周围的地质区域却和绿波段中一样亮。
The cheapest way to get one is to invoke the spectral theorem and to conclude that normal operators always have non-trivial invariant subspaces . 取得这样结果的最省力的尝试是引用光谱定理而得到正规算子恒有非平凡不变子空间的结论。
The hot, massive, high-luminosity stars of spectral types o and b are not distributed uniformly over the galaxy but are grouped into extensive, separate aggregates that have come to be called associations . O型和B型的大质量高光度热星在银河系中分布并不均匀,而是聚集成为分开的大星群,即所谓星协。
The spectral region in the red or near infrared will be emphasized, because this is a region of low loss for optical fibers and therefore of interest for optical communication systems . 着重研究光谱区域是红及近红外波段,因为这是光学纤维低损耗的区域,也就是对光通信系统有意义的区域。
Measuring methods of photocell - spectral sensitivity 光电池测量方法光谱灵敏度
of or relating to a spectrum; "spectral colors"; "spectral analysis"
resembling or characteristic of a phantom; "a ghostly face at the window"; "a phantasmal presence in the room"; "spectral emanations"; "spiritual tappings at a seance" 同义词:apparitional, ghostlike, ghostly, phantasmal, spiritual,