针状体

The former consists of the spiculate FeAl3 phase which formed by the temperature deduction and the latter is composed of the lingulate FeAl3 and Fe2Al5 phases which embedded the substrate. Diffusion annealing as taken at 850℃, the structure changs apparently with increasing of the diffusion annealing time.

结果表明：浸镀层由表面富铝层及扩散层构成，富铝层包含降温形成的针状FeAl3相，扩散层由FeAl3、Fe2Al5相组成，形状如舌状指向基体。850℃扩散退火，随扩散时间的延长镀层组织结构明显变化。

The intermetallic compounds are coarsened into nubbly Cu6 Sn5 phase by adding excessive Cu into Sn-Cu solder alloy. For Sn-9Zn-xCu solder alloys, the long needle-like Zn rich phase which is the mainly existing form of Zn in Sn-Zn solders is transformed into Cu5 Zn8 phase and fine Zn rich phase by the addition of 2% Cu, while CuZn phase and Cu6 Sn5 phase are formed in Sn-9Zn-10Cu bulk alloy. When soldering within short time under 260℃, the ripening and growth of IMC at Sn-xCu/Cu interface are accelerated with increasing Cu content in Sn-Cu solders.

结果表明，当Sn-Cu钎料中Cu的含量为2%时，基体中IMC粗化为块状的Cu6Sn8相；对于Sn-9Zn-xCu钎料合金，2%Cu元素的加入使得Sn-9Zn基体中长针状的富Zn相转化为Cu5Zn8相以及细小的富Zn相，而当Cu含量达到10％时，钎料基体中的IMC为CuZn相与Cu6Sn5相。

Plants not pulvinate,(5-)8-25(-30) cm tall; petals (3-)3.5-5 mm; leaf trichomes narrowly lanceolate in outline, with only 2 principal minute branches from stalk apex; seeds (1.8-)2-2.5 × 1-1.5 mm

垫状的不植株，(5-)8-25(-30)厘米高；花瓣(3-)3.5-5毫米；狭披针形的叶毛状体轮廓，概括地2 主要小分枝从柄先端那里；种子( 1.8-)2-2.5 * 1-1.5 毫米 10 A。

Fruiting pedicels clavate at apex; fruit oblong, elliptic, oblong-oblanceolate, or elliptic-obovate, glabrous or pubescent with slender trichomes, apex acute, obtuse, rounded, or rarely subemarginate.

果梗棍棒状的在先端；果长圆形，椭圆形，倒披针形长圆形，倒卵形或椭圆形，无毛或被短柔毛具纤细的毛状体，先端锐尖，钝，圆形，或很少近微缺。

The results show that a sound bonded interface is obtained without sheet inclusion, pore and unbinding. The microstructure consists of bulk α-Mg phase and needle compound in the weld metal, element Al diffuses along the grain boundary of the substrate into the welding line. A little Y diffuses into the base metal. A little Mn and Cu segregate and element Ni distributes homogeneously and no segregation appears in weld area.

结果表明：界面接合良好，未观察到片状夹杂物、气孔及未焊合等缺陷；焊缝区由块状α-Mg相和针状化合物组成，基体中的Al元素通过晶界扩散偏聚到焊缝中，微量Y元素扩散到基体中，有少量的Mn和Cu元素发生偏聚，Ni元素分布均匀，没有发生偏聚现象。

It to conductive fiber, conductive rubber or conductive metallic materials made of fine needle-like and wirelike eletrode-is a good, electriferous itself generate electric generation corona discharge to ion, and electriferous in the neptuni charge.

它以导电纤维、导电橡皮或导电金属质料等做成针状式细线状电极并很好不天隔绝，诳骗带电体本身的电场爆发电晕充电天生离子，来洋和带电体上的电荷。

The microstructure of hardened layer and formation mechanism were investigated.The microstructure of hardened layer consist of the completely hardened region and the transition region.The completely hardening region is composed of fine acicular martensites,residual austenites and a few dot-like carbonides.From surface to bottom in the hardened layer,the microstructure varies from fine to coar...

结果表明：采用适当的磨削参数可满足该钢所要求的淬火温度，进而获得适宜的淬硬层显微硬度和强化层深度；磨削淬火层由完全硬化区和过渡区组成；完全硬化区主要由细小针状马氏体组成，从表面到里层，组织形貌呈现&细→粗→细&的变化规律，其形成机理是热-力耦合作用影响磨削淬火过程中的奥氏体晶粒大小及其位错密度，并将直接影响转变后的马氏体组织形貌。

The made grinding ball has needle like bainte as main component, small amount of martensite and residual austenite, average surface hardness of HRC 56-58, average volume hardness of HRC 50-55, impact toughness of 16-20 J/sq cm and excellent comprehensive mechanical performance.

所制备的磨球组织主要为针状贝氏体及少量马氏体和残余奥氏体，磨球的表面平均硬度HRC56～58，平均体积硬度HRC50～55，冲击韧性α k 值在16～20J/cm 2 ，落球次数＞20000次，具有非常好的综合力学性能、耐磨性和冲击疲劳寿命。

Because there are incompletely cleavages in Jidong magnetite concentrate grain, and octahedron crack exists in magnetite crystal, oxidation develops along octahedron crack or cleavage seam, strip oxidation or reticulation texture is formed, and then magnetite is oxidized to hematite completely.

由于冀东磁铁矿自身的特点，氧首先吸附在颗粒表面的解理缝周围，并与解理缝周围的磁铁矿反应形成针状或片状赤铁矿；然后氧化过程沿磁铁矿的八面体或解理缝继续发展，形成条状或网状结构的赤铁矿，最终完全氧化。

The morphology of T-ZnO has a very small change at a low sintered temperature. The needle of T-ZnO sublimated vanished with the increase of sintering temperature because of Joule-Thomson effect, and ZnO particles and massive ZnO appeared.

在低温下烧结(50oC)，四针状纳米ZnO的形态改变不大；随着烧结温度的升高，由于汤姆逊效应，针尖升华，导致针体部分逐渐消失，颗粒状、块状ZnO逐渐增多。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。