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nacre造句

"nacre"是什麼意思  nacreの例文  
造句與例句手機版
  • Nacre is one of the general construction units of mollusk shells , thoroughly studying on it can provide insight not only into the pearl - culture , but also into fabrication of advanced organic - inorganic composite materials
    珍珠層是軟體動物硬殼中普遍發育的一種結構單元,對其進行深入研究可為人工培育珍珠及制造現代有機-無機復合材料提供科學依據。
  • Compare a 5mm freshwater cultured pearl with a 10mm south sea cultured pearl and the difference in the amount of nacre is obvious . the difference in luster is as clearly visible as the difference in the pearl sizes
    所以當光線照射到珍珠上以后,一部分被表面反射,而另一部分則進入珍珠內部,被另一層珍珠層反射,當然,還會有一部分再進入到更深的珍珠層。
  • Finally , the effects of carotenoids in nacres or pearls on their commercial value , and the formation mechanism of nacres are discussed preliminarily in terms of the previous works and the results done in this paper
    最后在總結前人及本文工作資料的基礎上,對珍珠及珍珠層中類胡蘿卜素的存在對珍珠(層)價值和質量的影響及珍珠層的形成過程兩個問題進行了初步探討。
  • This suggestion not only provides new scientific evidence for the nacre used as pharmaceutical and hygienical products , but also is of significance to the bleaching of pearl so as to increase the quality and the commercial value of pearls
    該研究成果為擴大珍珠及珍珠層在藥用及保健品等領域的應用提供了科學依據,并對珍珠的漂白進而提高其商業價值具有重要的現實意義。
  • The experiments show that nacre , a type of natural nano - bioceramic material , when used as bone implant for reconstruction of bone defects , is not only biocompatible and biodegradable , but also osteoconductive and osteoinductive
    本文根據國外文獻有關利用珍珠層作為骨植入材料的研究報道,就珍珠層的生物相容性和可降解性,及其所具有的骨誘導和骨傳導作用的動物臨床實驗結果,進行了綜合分析和論述。
  • And also , these two crystal orientations varying with the different positions in the same nacre of shells clearly shows the structurally inhomogeneities of nacre . these results offer new insight into the study of the nacre formation
    對同一三角帆蚌貝殼珍珠層,文石晶體的這兩種擇優取向的程度隨殼結構位置的變化而變化,反映了三角帆蚌珍珠層結構的不均勻性,為研究珍珠層的成因提供了新的思路。
  • B . main use : as widely used all over the world , it is a good substitute for asbestos in construction industry , an ideal filling material for paint , dope , rubber and plastic , and its application goes as far as to many other fields like electric welding , fire retardant , electronic products , oil well drilling and nacre dye
    天然云母粉廣泛應用于絕緣絕熱油漆塑料橡膠陶瓷石油鉆井電焊條化妝品宇航等領域中,超細云母粉作塑料涂料油漆橡膠等功能性填料,可提高其機械強度,增強韌性附著力抗老化及耐腐蝕型等。
  • 3 ) in shell of hyriopsis cumingii ( lea ) , the prismatic layers and the nacreous layers are all composed of aragonite minerals , and aragonite crystallites in prismatic layers show obviously preferential orientation of [ 012 ] axis perpendicular to the shell layers , so it is considered that the orientation of aragonite crystallites in prismatic layers perhaps play an important role in deciding the orientation of aragonite crystallites in nacre and acts as one of template to resulting the formation of aragonite with [ 012 ] orientation perpendicular to nacreous layers in nacre
    3 )與海水貝殼明顯不同的是,三角帆蚌棱柱層礦物相與珍珠層一樣皆為文石相,同時查明棱柱層中文石晶體具[ 012 ]軸垂直殼層面的明顯的擇優取向。本文認為,三角帆蚌棱柱層中文石晶體的擇優取向可能對珍珠層中文石晶體的擇優取向存在模板導向的作用,導致珍珠層[ 012 ]定向的文石晶體的形成。
  • Main conclusions of this work are drawn as follows : 1 ) in nacre of hyriopsis cumingii ( lea ) shell , the aragonite crystallites exist two kinds of orientation , one . which is generally accepted , is the c axis of aragonite perpendicular to nacreous layers , the second , which is proposed in this paper , is the [ 012 ] axis of aragonite perpendicular to nacreous layers
    本文所獲得的主要成果有: 1 )明確提出三角帆蚌珍珠層中文石晶體的擇優取向除了存在公認的其c軸垂直珍珠層面外,還存在其[ 012 ]軸垂直珍珠層面的新取向。
  • In this paper , the nacre of hyriopsis cumingii ( lea ) which is one of the main freshwater pearl - forming mollusk in china is studied emphatically , as compared with the nacre of three species of saltwater pearl - forming mollusks , pinctada martensii ( dunker ) , pinctada maxima ( jameson , and peteria penguin ( roding ) . the basic characteristics of nacreous and prismatic layers are understood by powder x - ray diffraction analysis , trace elements analysis , amino acid composition of protein and differential thermal analysis
    本文以我國主要育珠蚌淡水三角帆蚌貝殼珍珠層為重點研究對象,以三種海水育珠貝馬氏珍珠貝、企鵝珍珠貝及大珠母貝貝殼珍珠層為對比研究對象,首先通過粉末x -射線衍射、微量元素分析、蛋白質氨基酸分析及差熱分析對珍珠層及其與之密切共生的棱柱層的基本特征進行了初步研究。
  • It's difficult to see nacre in a sentence. 用nacre造句挺難的
  • Based on these results , main attentions are paid to the microstructure of nacre according to the study of x - ray diffraction m scanning electron microscopy , transmission electron microscopy and micro - raman spectra , and attentions also to the organic matrix especially the carotenoids in nacre according to in situ study of resonance raman spectra
    在此基礎上,重點采用x -射線衍射、掃描電子顯微鏡、透射電子顯微鏡及顯微拉曼光譜等對珍珠層的微結構進行了較詳細的研究,同時采用拉曼光譜對珍珠層中的有機質特征進行了原位分析研究。
  • To avoid the effects of cosmetics and perfume , pearls should be the last thing a woman puts on before going out and the first thing she takes off after returning home . also , pearls are quite soft , so for the longest - lasting pearls choose those with thick nacre that can help them withstand wear over time . the best way to care for pearls is to wear them often because the body s natural oils keep them lustrous
    從報導的實例來看,由于珍珠緊貼人的頸部,它的有效成分可以經摩擦進入人體,珍珠對體液分泌有一定吸收能力,皮膚對珍珠中所含藥物成分也有吸收,乃至影響局部患處,起消炎治療作用至于能治療神經衰弱癥,是因為珍珠具有鎮驚安神作用,但珍珠項鏈如何起安神作用還值得具體研究。
  • Application as widely used all over the world , it is a good substitute for asbestos in construction industry , an ideal filling material for paint , dope , rubber and plastic , and its application goes as far as to manyother fields like electric welding , fire retardant , electronic products , oil well drilling and nacre dye
    經加工成云母粉還有較好地滑動性和較強的附著力。由于云母和云母粉本身的性能,主要有如下用途:日用化工原料云母陶瓷原料油漆添料塑料和橡膠添料建筑材料用于焊條藥皮的保護層用于鉆井泥漿填加劑等。
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