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Electroless Co-Ni-P thin film as-deposited was amorphous possessing smooth surface. The film was crystallized after heat treatment at 300℃ for 1 hour, and the surface of film was composed of "taper humps". When the film was heated, phase of Co2P deposited from the solid solution and allotropic transformation took place from hexagonal close-packed system to face-centred cubic lattice.

摘 要:化学镀Co-Ni-P薄膜镀态下为非晶态结构,表面较为平整;经300℃×1h热处理,发生了晶化转变,表面由"圆锥峰"所构成;随加热温度的提高,镀层析出了Co2P相,并发生了由密排六方结构的α-Co向面心立方结构的β-Co的同素异构转变。

The other lamb you shall offer at the evening twilight, with the same cereal offering and libation as in the morning.

与傍晚那一只同献的,如早晨的素祭和奠祭一样,作为上主悦纳的一种馨香的火祭。

The structures of the principal allotropic forms of all the elements will be discussed in detail as the chemistry of each element is treated.

各种元素的主要的同素异性体的结构,在研究各种元素的化学时再详细地讨论。

This finding shows that all allotropic carbon forms known up to date can be produced in nature, and high temperature, pressure, catalysts particles seem to play an important role in producing carbon nanotubes.

该发现表明迄今为止所有碳的同素异形体均可产于自然界,并且高温、压力、催化剂颗粒在产生纳米碳管的过程中起到了非常重要的作用。

A pale yellow nonmetallic element occurring widely in nature in several free and combined allotropic forms.

硫,硫磺:一种浅黄色的非金属元素,以几种游离的或化合物的同素异形体形态,广泛地存在于自然界中。

Symbol P A highly reactive, poisonous, nonmetallic element occurring naturally in phosphates, especially apatite, and existing in three allotropic forms, white, red, and black. An essential constituent of protoplasm, it is used in safety matches, pyrotechnics, incendiary shells, and fertilizers and to protect metal surfaces from corrosion.

符号 P 磷:一种易起化学反应的、有毒的非金属元素,常在磷酸盐中天然存在,尤其是磷灰石,以三种同素异形的形式存在,为白色,红色和黑色,是原生质的基本成分,可用于安全火柴、烟花、燃烧弹和化肥,还可以保护金属表面免于腐蚀。

There is an allotropic change temperature (1155K) for pure Ti and it is a hydrogen-absorbing metal for different solubility in a-phase titanium and 3-phase titanium. The hydrogen atom dissolves in lattice and occupies tetrahedron interstitial position, and then forms TiH2 sublattice of face-centered cubic.

钛是-种具有同素异型转变点T(1155K)的吸氢金属,氢在α钛和β钛中有不同的溶解度,在T以下易形成具有面心立方晶格结构的TiH2,氢原子溶解在晶格中,占据四面体间隙位。

Electroless Co-Ni-P thin film as-deposited was amorphous possessing smooth surface. The film was crystallized after heat treatment at 300℃ for 1 hour, and the surface of film was composed of "taper humps". When the film was heated, phase of Co2P deposited from the solid solution and allotropic transformation took place from hexagonal close-packed system to face-centred cubic lattice.

摘 要:化学镀Co-Ni-P薄膜镀态下为非晶态结构,表面较为平整;经300℃×1h热处理,发生了晶化转变,表面由&圆锥峰&所构成;随加热温度的提高,镀层析出了Co2P相,并发生了由密排六方结构的α-Co向面心立方结构的β-Co的同素异构转变。

A soft, steel-gray to black, hexagonally crystallized allotrope of carbon with a metallic luster and a greasy feel, used in lead pencils, lubricants, paints, and coatings, that is fabricated into a variety of forms such as molds, bricks, electrodes, crucibles, and rocket nozzles.

石墨:一种质软、钢灰黑色、有金属光泽和滑腻感的碳的六方晶形的同素异构体,用于铅笔、滑润剂、颜料和涂层,可被制成多种形状,如模子、砖块、电极、坩埚和火箭发动机喷管也作 black lead , plumbago

Wherein X is an oxygen atom or a sulfur atom; C*, C** and C*** are asymmetric carbons; R 1 , R 2 , R 4 , R 5 , R 8 , R 9 and R 10 are each a lower alkyl group optionally having substituent and the like, or R 4 and R 5 and the like in combination optionally form a homocyclic ring optionally having substituent and the like; R 3 is an aryl group optionally having substituent and the like; R 6 and R 7 are each a hydrogen atom and the like; Nu is -CR 16 (COR 17 )(COR 18 ) wherein R 16 , R 17 and R 18 are each a lower alkyl group optionally having substituent and the like, and the like; and EWG is an electron withdrawing group.

通式中,X代表氧或硫;C *、C **和C ***分别表示不对称碳;R 1 、R 2 、R 4 、R 5 、R 8 、R 9 和R 10 分别代表任选取代的低级烷基等,条件是例如R 4 和R 5 可以相互结合形成任选取代的同素环等;R 3 代表任选取代的芳基等;R 6 和R 7 分别代表氢原子等;Nu表示-CR 16 (COR 17 )(COR 18 )(其中R 16 、R 17 和R 18 分别代表任选取代的低级烷基等)等;并且EWG表示吸电子基团。

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