spectrum n. (pl. -tra ) 1.【物理學(xué)】譜,光譜;波譜;能譜,質(zhì)譜。 2.【無線電】射頻頻譜;無線電(信號)頻譜。 3.【心理學(xué)】(眼睛的)余像;殘像。 4.〔轉(zhuǎn)義〕范圍,幅度;(連續(xù)的)系列。 an absorption spectrum 吸收(光)譜。 a bright line spectrum 線狀光譜。 an optical spectrum 光譜。 a solar spectrum 太陽光譜。 a wide spectrum of opinion 意見的不同幅度甚大。
Stability of pulse x - ray spectrum field generated by intense diode 射線能譜場穩(wěn)定性研究
In conclusion , this paper gave a new method of realizing gps receiver . and this method can be expanded to the other spread spectrum fields which have good developing expectation 本文提出了一種新型的gps接收機的實現(xiàn)方法,但可擴展到其它擴頻領(lǐng)域,有很好的發(fā)展前景。