The bricks have very little variation in tone, giving the facade a uniform red colouring.
砖块在色调上的变化很小，给予立面统一的红色。
2
In the words flow, the reading intonation, which is related to tone, degree, stop and linking, speed and other factors, is the general pattern of the pitch variation.
朗读的语调是语流中呈现出来的音高变化的总体模式，它与字调、轻重、停连、快慢等因素有关。
3
The quantitative variation laws about cognitive distances to genial color tone obstacles were studied in ground dynamic environment.