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(shí)的傳播。 diffusion of speech 演說的冗長。 diffusion of light 光線的漫射。
depth n. 1.深;深度。 2.(色澤的)濃度;(聲音的)低沉;(感情等的)深厚,深沉,深刻。 3.進(jìn)深。 4.〔常 pl.〕深處;深淵,深海,海。 5.正中,當(dāng)中。 6.深?yuàn)W,奧妙。 beyond [out of] one's depth 在深不著底的地方;不能理解,力所不及。 depth bomb [charge] 深水炸彈。 depth of shade 色度。 from the depth of the mind 誠心,真心,從心底里。 in depth 廣泛,徹底,詳細(xì)。 in the depth of 在正中;在深處。 keep within one's depth 在(某人)可能限度內(nèi)?水;做(某人)力所能及的事情。 to the depths of one's heart 內(nèi)心深處。 with a great depth of feeling 深深同情。
Electrochemistry c - v method was employed to measure the carrier concentration profile distribution of samples , discovered that the carrier concentration decreased with increasing of the diffusion depth , and the peak of concentration located at 0 . 25 m beneath the surface 利用電化學(xué)c - v法對(duì)樣品的載流子濃度的縱向分布進(jìn)行了研究,發(fā)現(xiàn)在距離樣品表面0 . 25 m處載流子濃度達(dá)到最大。
Based on a chloride concentration test of field - exposed concrete specimens , a numerical example is given . the result shows that the chloride concentration increases with service time , decreases with diffusion depth , and the chloride diffusivity is a variable with time , depth and chloride concentration 通過對(duì)自然環(huán)境中混凝土試件的現(xiàn)場(chǎng)氯離子濃度試驗(yàn)的算例分析發(fā)現(xiàn),混凝土中的氯離子濃度隨服役時(shí)間增加而增加,隨擴(kuò)散深度的增加而減少。
Moreover , we observed the concentration profiles of the ion - implanted samples and the diffused samples by c - v method , and discovered that the carrier concentration decreased with increasing of the diffusion depth . whereas , the peak concentration of the ion - implanted samples located at 0 . 248151 u m beneath the surface and the peak concentration of the diffused samples located at the surface . furthermore , the carrier concentration of mnas source diffused sample as high as 102 % m3can be obtained , and the surface was much smoother compared with that of the pure mn source diffused sample 發(fā)現(xiàn)兩種摻雜方法的載流子濃度大體上都是隨著擴(kuò)散深度的增加而下降,不同的是離子注入樣品的載流子最高濃度處于離表面深度0 . 248151 m處,而擴(kuò)散樣品的載流子最高濃度處于表面,并摻錳( mn )砷化鋅( gaas )材料性質(zhì)的研究且還發(fā)現(xiàn)相對(duì)于純mn源擴(kuò)散樣品來說, mnas源擴(kuò)散樣品的表面較為光滑,且表面載流子濃度高達(dá)1020 cm ’數(shù)量級(jí)。