diffusion n. 1.散布,發(fā)散。 2.傳播,普及。 3.冗長。 4.【化學(xué)】滲濾。 5.【物理學(xué)】擴(kuò)散,漫射。 the diffusion of knowledge 知識的傳播。 diffusion of speech 演說的冗長。 diffusion of light 光線的漫射。
Standard guide for placement and use of diffusion controlled passive monitors for gaseous pollutants in indoor air 室內(nèi)空氣中氣態(tài)污染物用擴(kuò)散控制無源檢測器安置和使用的標(biāo)準(zhǔn)指南
According to the i - t curves of potential step , it was revealed that electrocrystallization of ni - w - b alloy on glassy carbon followed the mechanism of instantaneous nucleation and three dimensional growth with diffusion controlled . the crystal nucleus number on the surface of electrode raised by the increase of over potential 根據(jù)電位階躍的i t曲線分析得知,在玻摘要碳電極上ni wb合金電結(jié)晶過程遵從擴(kuò)散控制瞬時成核三維成長模式進(jìn)行,且隨著過電位的增加,電極表面上晶核數(shù)增多。