查询词典 rhombohedron

And under a suitable condition, dark brown short rhombohedron crystals of ΔnifE Av1 were obtained and identified for the first time.

首次获得了ΔnifE Av1的深棕色短斜四棱柱晶体，并对其蛋白组成进行了鉴定。

Quenched at start temperature 1 450 ℃,doping clinker could left more content of rhombohedron alite.

掺杂熟料从1 450 ℃开始淬冷可以保留较多的R型阿利特。

Formation mechanism of particles; morphology and size control; nickel and cobalt oxalates; rhombohedron and fibre morphologies

工程科技I，化学，无机化学颗粒形成机理；形貌与粒度控制；镍钴草酸盐；菱柱状与纤维状形貌

In the second section, the increase of sintering temperature changes the structure of La〓Sr〓Mn〓Fe〓O〓 from rhombohedron to cubic, increases resistivity, and decreases T〓.

第二章，第一节系统地研究了掺杂Fe对La〓Sr〓Mn〓Fe〓O〓体系的结构及电磁特性的影响。

Quartz is commonly found as a six-sided, prism-shaped crystal topped by pyramid-like form, while calcite usually shows a crystal form of rhombohedron.

石英通常呈六方柱，顶上带有双锥的晶形，而方解石却常以菱形六面体形式出现。

In the rhombohedron, each top site is occupied by a pair of ligand-unsupported Ag atoms which are surrounded by six phenol groups in an ethane-like structure. The phenol groups at another ends of the ligands bridge the rhombohedrons into novel non-interpenetrating three-dimensional network.

在每个棱柱体内，每个顶点由无桥连配体支持的、周围的六个酚羟基以一种不寻常的、类似于乙烷分子结构的扭曲方式排列的一对 Ag 原子占据，配体另一端酚羟基将棱面体连接成新颖的非穿插的具有棱形通道(沿 a 和 b 轴方向)的三维网络结构。

Based on the observation of atomic force microscopy, the etching morphology of faces and sections with different crystallographic significance on α-quartz has been studied. The etching morphology on the natural crystal faces hexagonal prism faces (1010 and 01(average10, rhombohedron positive form face 10(average11, rhombohedron negative form face 01(average11 and the sections between any of the two crystal faces has been observed. It is shown that the etching pit on the same simple form has the same shape, while the orientation of the etching pits can be different. Different simple forms have different shapes of etching pits and the shapes of etching pits on positive form and negative form of the same simple form are also different.

通过对α-石英自然晶面六方柱面10(平均值10和01(平均值10、菱面体正形面10(平均值11与菱面体负形面01(平均值11、以及介于上述自然晶面之间的切面进行腐蚀形貌的观察研究发现，石英晶体同种单形的晶面腐蚀坑形态相同，但方位可以有变化，不同单形的晶面腐蚀坑形态不同；同一单形的正形与负形腐蚀坑形状不同；蚀坑形态能够反映晶体的对称性。

This study has successfully synthesized CaCO3 particle with disk, hexagonal plate, rhombohedron, sphere-like, spindle, twin-rosette, doughnut, rods and filament in shapes.

本实验已成功合成具圆盘片状、六角片状、甜甜圈状、菱形体、纺锤状、类球状、双办花、条状、丝状晶貌之碳酸钙。

Under a suitable condition of crystallization, dark brown short rhombohedron crystals could be obtained from FeMoco-deficient MoFe protein (ΔnifE Av1) purified from a nifE deleted mutant DJ35 of Azotobacter vinelandii Lipmann grown in NH3-limited medium.

从限氨固氮培养基中培养棕色固氮菌缺失nifE的突变种DJ35中，分离纯化得到缺失FeMoco的钼铁蛋白(ΔnifE Av1)。在一定条件下结晶得到深棕色短斜四棱柱晶体。

On the rhombohedron face {1011}, Dauphine twinning showed different shapes of etching pits between individuals, because rhombohedron positive form {1011} and negative form {0111} appeared on both sides of twin partition line, while Brazil twinning showed symmetry plane between the irregular triangle etching pits of individuals. On the trigonal prism section 11(average20, Dauphine twinning showed different shapes of etching pits between individuals, because trigonal prism positive form {1120} and negative form {2110} appeared on both sides of twin partition line, while Brazil twinning should show symmetry plane between the ellipse or quadrilateral etching pits of individuals, which was not observed.

菱面体{1010}面上存在道芬双晶处，道芬双晶双晶缝合线两端分别是菱面体正形、菱面体负形出露处，导致蚀坑形状不同；菱面体{1011}面上存在巴西双晶处，不规则三角形蚀坑形态的方位关系为对称面关系；三方柱切面{1120}面上存在道芬双晶处，道芬双晶双晶缝合线两端分别是三方柱正形、三方柱负形出露处，导致蚀坑形状不同；三方柱切面{1120}面上存在巴西双晶处，椭圆形或四边形蚀坑方位应为对称面关系，但实验中未见到。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。