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- tetragonal trapezohedron 四方偏方三八面体
- The output of each four-like many forest has a Tetragonal Haig. 输出的四弛胶卷各自有一个四方暗格。
- Give me an old-fashioned tetragon on a central pivot every time. 每次都给我看一个建在中轴上的四角大楼吧。”
- Bridgman method for tetragonal system was investigated by numerical simulation. 本文对四方晶系晶体的Bridgman法生长进行了稳态数值模拟。
- LiCaTa_3O_9 is tetragonal with lattice parameters a=0.778 nm, c=0.783nm. The point group is 4/mmm. LiCaTa_3O_9晶体属四方晶系;点阵参数a=0.;778nm;c=0
- The structure of La_(0.84)Sr_(0.16)CrO_3 belongsto the tetragonal system (with a =3.866A, c=3.921A and c/a=1.014). La_(0.;84)Sr_(0
- SnO_2 is a wide-band oxide semiconductor with a bandwidth of 3.6~4.0eV and a tetragonal rutile crystal structure. SnO_2是一种对可见光透明的宽带隙氧化物半导体;禁带宽度3.;7-4
- Analysis of Raman Scattering in Fe-doped PZN-PZT Ceramics with the Co-existence of Tetragonal and Rhombohedral[J]. 引用该论文 路朋献;邹文俊;许德合;马秋花;朱满康;侯永改;栗政新;王春华.
- The pattern of XRD illustrated that the pure perovskite phase (tetragonal) had been obtained for all samples. XRD分析结果表明所制备的样品都生成了纯的钙钛矿结构,并且都为四方相。
- Result shown PFN gave rise to the crystal structure transit from rhombohedral phase to tetragonal phase. PFN的增加引起该体系陶瓷从三方相向四方相转变。
- Compared with JCPDS standard card, all samples were identified to be tetragonal SnO2. 对所得粉体SnO2进行XRD分析，对照JCPDS标准卡，可知所得粉体均为四方相金红石型结构。
- We also study the relation between the dielectric constant and lattice distortion of the PT tetragonal and cubic phase region. 我们还研究了pt四方相区和立方相区介电常数与晶格畸变的关系。
- From the XRD results,it was found that the K2Pr2Ti3O10 belongs to tetragonal crystal lattice and has I4/mmm space group. XRD分析结果表明,K2Pr2Ti3O10为四方晶系,空间群I4/mmm。
- X-ray diffraction showed that the tetragonal structure(I4/mmm)is retained but that the unit cell volume is slightly increased. 利用 x 射线衍射和磁测量研究了 RTiFe_(11)N_x 的晶体结构和内禀磁性.;x 射线衍射表明 RTiFe_(11)N_x 仍保持 RTiFe_(11)的四方结构(I4/mmm)
- In Ti-H system, ageing of quenched specimens which contained the hydrides are found to have a face-centered tetragonal structure ( -titanium hydride). 中文摘要金属氢化物作为一种储氢材料，已引起世人的广泛关注。
- Under the high temperature and high pressure, the hexagonal graphite crystals can change into the tetragonal diamond crystals. 在高温高压下,六方晶格的石墨转变为立方晶格的金刚石。
- In Zr-H system, ageing of quenched specimens which contained the hydrides are found to have a face-centered tetragonal structure ( -zirconium hydride). 由于钛/锆系储氢合金因为其原子间隙由四面体构成，间隙多，有利于氢原子的吸附。
- In the case of CO2 hydrogenation, methane was formed on monoclinic zirconia while formate species was observed on tetragonal zirconia. 在氢气存在的条件下，单斜氧化锆上生成甲烷而在四方氧化锆上则生成甲酸盐。
- The ratio Mg:Nb=1:1 made the long-range correlation rise to a degree that tetragonal properties and strong polar vibration appeared. Mg与Nb为1:1的比例(与极性微区的Mg、Nb比例相同)使PMN-PT的长程相关性增加，极性键振动增强，居里温度附近出现四方相的特征。
- Transformation behavior and flexural strength of tetragonal zirconia (TZ3Y) are affected significantly by surface modification. 正方相氧化锆(TZ3Y)的相变行为和挠曲强度深受表面处理影响。
