查询词典 crystals

Iron oxide magnetosomes contain magnetite (Fe3O4) crystals and iron sulphide magnetosomes contain greigite (Fe3S4) crystals.

如果把一条形磁铁放在附近，细菌就游向吸引罗盘针指向北端的那一极。

In the present work, pale-yellow KLN crystals with high-quality are grown successfully by a modified Bridgman technique for the first time, the crystallizing behavior, defects and properties of KLN crystals are studied also.

本课题首次将坩埚下降法生长技术用于KLN晶体的生长研究，成功地生长出浅黄色、高质量KLN晶体，同时研究了KLN熔体的析晶行为以及晶体缺陷，测试了KLN晶体的电学和光学性能。

TEM observation showed that the morphology of γFe〓O〓 nano-crystals was plate-shaped and Co〓O〓 nano-crystals consisted of small spherical particles and nano-wires.

TEM观察显示γ-Fe〓O〓纳米晶为片状结构，Co〓O〓纳米晶则是由晶态的球形小粒子和非晶的线形小粒子两部分组成。

Crystals are obtained and the crystal packings of these crystals are discussed.

此外，对于制备得到的五种化合物晶体，其分子堆积特点和原子之间的作用力也被详细分析。

Its shown that, on normal incidence, the photonic crystals containing negative refraction materials have wider photonic band gaps which is different from the case of traditional photonic crystals, which have narrow transmission bands.

第四章从麦克斯韦方程组出发，推导了光在单负材料周期性结构的传输矩

The main properties of one-dimensional photonic band gap structures that include layers of negative refraction material are analyzed from the explicit dispersion equation. The results show that the photonic crystals containing negative refraction materials have wider photonic band gaps which is different from the case of traditional photonic crystals with narrow transmission bands when the two layers have the same optical thickness.

从色散关系出发，通过数值模拟计算研究了由正折射率材料和负折射率材料交替组成的一维光子晶体的能带结构与光子晶体的结构参数之间的关系。

Significantly shortening of 〓C T〓s for orthorhombic crystals indicates that the thicknesses of crystals decrease during the course of stretching.

通过对不同拉伸比样品〓C T〓弛豫行为的研究发现，拉伸导致正交晶晶片厚度明显变薄，拉伸对于无定形相的高频分子运动几乎无影响。

As the basic form of ice crystals is a hexagonal prism, most ice crystals are six-sided in shape at the beginning.

由于冰晶的基本模式是六角棱体，大部份冰晶的雏形都是六角形的。

The object of the game (which is a little like "Tetris") is to line up sets of five or more six-sided crystals of the same color before the new crystals fill the screen.

HexaFun 是一个六角形框架的蜂窝方格所组成的宝石宾果游戏，看似简单，但它会随机的在画面中出现下一组宝石，玩家可以用来测试自己的反应能力。

Most crystals have six-sided symmetry, though three- or 12-sided snow crystals also fall. You will never see a real snow crystal with four, five or eight sides.

多数晶体呈对称的六边形，尽管有过三角形和十二边形的雪花，但现实中你绝不可能见到四边形、五边形或八角形的雪晶。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。