查询词典 cubic

Keywords: Photonic crystals; Photonic band gap; FDTD; colloidal microspheres; face-centered cubic.

中文关键词：光子晶体；光子带隙； FDTD法；微球粒度；面心立方。

Consideration of microstructure, the metal material has a face-centered cubic lattice of the austenitic steel, Reducing Valves copper and aluminum do not appear in the low temperature low temperature brittleness, but the hardness of aluminum and aluminum alloys is not high, the sealing surface of the wear-resistant aluminum , anti-scratch performance is poor, so the use of low-temperature valves have certain limitations, only used in low voltage and small-caliber valve.

从金相考虑，金属材料中具有面心立方晶格的奥氏体钢、铜和铝在低温状态下不会出现低温脆性，但因铝及铝合金的硬度不高，铝密封面的耐磨、耐擦伤性能差，所以在低温阀门中的使用有一定的限制，仅用于低压和小口径阀门中。

SEM patterns and transmission spectra show that the crystals exhibit a face-centered cubic structure with low defect density, and the band gap agrees with the calculated result very well.

实验结果表明，该光子晶体呈面心立方结构，内部晶格完整，缺陷较少，带隙中心波长的实验值与计算值符合得较好。

The results showed that the hollow nanospheres were 65 nm in sizes, which was smaller than that of the original CeO2 nanospheres. The Ce(subscript 1-x)TiO2 hollow nanospheres were face-centered cubic structure as the same as CeO2 nanospheres.

结果表明，Ce(下标 1-x)TiO2纳米空心球的粒径为65 nm，小于初始状态的CeO2纳米球，并且Ce(下标 1-x)TiO2纳米空心球的结构与前驱体CeO2晶体结构相同，均为面心立方结构。

Buckminster Fuller (1975) claimed to have a proof, but it was really a dexxxxion of face-centered cubic packing, not a proof of its optimality(Sloane 1998). A second putative proof of the Kepler conjecture was put forward by W.

项老头子是个聪明人，因为他知道在德国说&Erlangen纲领是个trivial的idea&可是要挨鸡蛋的，他也知道在国外搞教改肯定没人理他。

The results show that:(1) Light-calcined MgO powders prepared with nature magnesite or Mg2 both are of face-centered cubic structure.

结果发现：水化前后得到的都是面心立方晶体结构的MgO，但水化前得到的轻烧MgO中仍存在官能团CO32-的残留物，而水化后得到的轻烧MgO中不存在CO32-，而且颗粒变得较易破碎，大大减少了细磨时间；再者，水化后的轻烧MgO活性较高，加上Mg2在分解过程中残留的水分对MgO 的烧结起催化作用，因此，使其经高温锻烧制得的烧结镁砂的开口气孔率由水化前的2.0%下降到0.6%，闭口气孔率由水化前的6.1%下降到2.8%，体积密度由水化前的3.29g/cm3提高到3.46g/cm3。

XRD pattern shows that the as-prepared sample is face-centered cubic nickel. TEM image indicates that the fcc Ni is nano-particles of about 30-50 nm in diameter.

透射电子显微镜结果显示，产物为尺寸均匀的球形颗粒，颗粒直径在30~50nm，颗粒分布均匀，表面光洁。

The base possessing connected four holes is a cubic platform made from organic glass in side length 7cm. Exits of four holes are connected to sample holder, pressure measuring system, pressure feed system and unloading valve.

测量基座是四孔底部相连、边长为7cm的立方体有机玻璃块平台，四孔出口分别与样品支架、压力测量系统、压力给进系统和卸荷阀相连接。

The principle goal of this proposal is to systematically study the structural, electronic, and magnetic properties of cubic ferrites using mainly the first-principles methods as well as the relevant proposed theoretical models.

本计画的主要目的在系统性地研究立方亚铁磁系统的结构、电性与磁性与其之间的关联，研究的方法主要使用第一原理计算与相关理论模型。

The principle goal of this proposal is to systematically study the structural, electronic, and magnetic properties of cubic ferrites using mainly the first-principles methods as well as the relevant proposed theoretical models.

中文摘要本计画的主要目的在系统性地研究立方亚铁磁系统的结构、电性与磁性与其之间的关联，研究的方法主要使用第一原理计算与相关理论模型。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"