| 1. | Its low temperature form is rhombohedral with an elongation along (111) .
它的低温形态是沿着111伸长的菱面体。
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| 2. | Hexagonal rhombohedral hemimorphic hemimorphic hemihedral class
六方菱形异极体
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| 3. | Rhombohedral hemihedrism rhombohedral hemihedry
菱形半面像
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| 4. | Hexagonal rhombohedral hemibedral class
六方菱形半面体类
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| 5. | Rhombohedral tetartohedral class
菱形四分面像类
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| 6. | Finally , an amorphous structure is formed mainly with rhombohedral structures mixed up with clusters of cubic ( fcc , bcc ) and hcp structures
最后形成一种新型的以菱面体结构为主、夹杂着立方体、六角密集等团簇结构所组成的非晶态结构。
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| 7. | No evidences of low - temperature phase transition were found for pbtio3 , while the tetragonal - orthogonal and orthorhombic - rhombohedral phase transitions were present for batio3
没有发现钛酸铅存在低温相变的证据，而钛酸钡则存在四方正交和正交三角铁电相变。
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| 8. | The xrd peak of 2 6 = 45 ? was gradually widened with the increasing of pt . it might mean that rhombohedral phase was gradually converted to tetragonal phase in this system
在pmn - pt系统中，随着pt含量的增加， 2 = 45的xrd特征峰出现明显峰宽化现象，表明pmn - pt由三方相逐步向四方相转化。
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| 9. | In order to improve the adherence of the film to the substrate and the repeatability of synthesis , we invent a three - step approach , which comprised the steps of turbostratic boron nitride ( tbn ) turning into rhombohedral boron nitride ( rbn ) as the first , rbn turning into cbn as the second and deposition as the last
基于对bn薄膜相结构的分析和优化的沉积条件,制备出立方相含量高达95 %的cbn薄膜。为了改善制备的可重复性和粘附性,提出了三步沉积方法,即将成核过程分成tbn转化为rbn和rbn转化成cbn的两步,加上之后的沉积过程。
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| 10. | It has been found that all the elements in the addition act respectively in the way that affect the material ' s properties during the calcining process and the increase of the pms / pzn ratio can weaken the stability of the crystal structure of the sintered ceramics and cause the crystal structure transformation from the tetragonal to the rhombohedral as well
发现多元压电陶瓷材料中，无论是主加组元还是微量掺杂，预烧阶段，它们在陶瓷中的作用都表现为单独离子对陶瓷结构和性能所起的作用。烧结后，随着pms pzn相对量的提高，陶瓷晶体结构由四方相向三方相转化，同时稳定性下降。
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