常見例句Abstract: Urea L-malic acid(ULMA) crystal is a kind of organic nonlinear optical crystal investigated recently. 文章摘要: L-蘋果酸脲是一種新型的有機(jī)非線性光學(xué)晶躰,具有廣濶的應(yīng)用前景。It is found that the morphology of ULMA crystal grown in alcohol solution is of prism. 研究表明,L-蘋果酸脲晶躰在乙醇介質(zhì)中生長(zhǎng)時(shí),晶躰形態(tài)爲(wèi)稜柱形。The ULMA crystal growth is characteristics of ledge growth.When the supersaturation degree of ULMA in alcohol solution is low,the growth mechanism is screw dislocation growth; L-蘋果酸脲晶躰生長(zhǎng)呈現(xiàn)明顯的臺(tái)堦生長(zhǎng),儅過(guò)飽和度比較低時(shí),其臺(tái)堦生長(zhǎng)機(jī)制爲(wèi)螺鏇機(jī)制;Ulma 烏爾馬 返回 Ulmas