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nacreous造句

"nacreous"是什麼意思  nacreousの例文  
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  • Nacreous aspiration ended up as a unstoppable flaw
    彩虹班的愿望成了呼嘯的狂風。
  • Nacreous pearly layer
    珍珠質層
  • The research present situation and advancement of growth structure of nacreous layer are discussed
    對珍珠層生長結構的研究現狀與發展趨勢予以了綜述和討論。
  • Nacreous clouds ? also known as polar stratospheric clouds ? contribute to the formation of the polar ozone holes
    珍珠云,也稱為極地平流云,會造南極臭氧空洞的形成。
  • Nacreous clouds form when the fading light at sunset passes through tiny ice crystals blown along by a strong jet of stratospheric air
    珍珠云是由于日出時的太陽光穿過被一股強氣流吹起的冰晶體時形成的。
  • They are covered with a smooth , safe , nacreous layer to let them slip , pearllike , from our souls without real pain
    他們被我們包裹在一層光滑、安全、充滿光澤的隔離膜中,仿佛珍珠一樣,他們經歷的苦難不會讓我們的靈魂深處感受到任何真正的痛苦。 ”
  • Renae baker , a scientist with the australian bureau of meteorology , snapped this picture of a rare nacreous cloud on july 25 at the country ' s antarctic mawson station
    雷納?貝克是澳洲氣象署的一位科學家。他在7 . 25日拍下了這張罕見的珍珠光澤的片。
  • In pearls , the nacreous layers are generally translucent and composed completely of aragonite , whereas layers without pearly luster are opaque and composed of aragonites and / or vaterites with their relative concentrations different in different pearls
    其中具珍珠光澤的珍珠層一般呈半透明狀,均?文石組成;無珍珠光澤的不透明層有時由文石組成,有時由六方碳鈣石組成。
  • Surface microtopography , representation and tracing of nacreous layers of pteria penguin and blister pearl from sanya , hainan province , are studied by using interference microscope and environmental scanning electron microscope and atomic force microscope
    摘要采用干涉顯微鏡、環境掃描電子顯微鏡、原子力顯微鏡對海南三亞企鵝貝及其附殼珍珠的珍珠層表面微形貌進行了研究。
  • 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。
  • It's difficult to see nacreous in a sentence. 用nacreous造句挺難的
  • 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。
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