系

A new cermet sinter with through micro-porous structure was developed by vacuum liquid phase sintering method, in which Al2O3-Ni-Cr-Mo-Si-Fe powder was used as the basic material, TiH2 and CaCO3 were used as the composite pore-forming materials and hominess grains was used as dispersal particles. The cermet sinter was then infiltrated with Ag-Cu-Pb-Sn at vacuum and formed a new high temperature self-lubricating material.

以TiH2和CaCO3为复合造孔剂，以硬质微细颗粒为惰性弥散质点，采用真空烧结法制备出具有贯通型微孔结构的Al2O3-Ni-Cr-Mo-Si-Fe系金属陶瓷烧结体，并在烧结体中浸渍Ag-Cu-Pb-Sn系浸渍型固体润滑剂制备出新型高温扩散自润滑材料。

The lines in the P^3 will be mapped to the points in the P^5 by using the Klein mapping representation and the homogeneous Plücker coordinates, the dependency of screw system is determined, criterions of dependency are given, and the dependency on different geometrical conditions are listed.

利用Klein映射表示法，通过齐次Plücker坐标将P^3中的线映射为P^5中的点，来确定螺旋系的相关性，给出了相关性的判据，并列出了在空间不同几何条件下螺旋系相关性列表。

In one family the diagnosis could not be made because the parents carried homozygote. The rate of diagnosis that could be made was 69%.

可诊断率为100％和50％的家系各6个，1个家系因双亲带型为纯合型而未能诊断，可诊断率为69%。

In the field of non-ferrous metal, electronic metal, ferro alloys and horniness alloys, especially the tungsten series products, the company has always been regarded as the most important trade counterpart by customer.

在有色金属，电子金属，铁合金，硬质合金，特别是钨系制品，钨系高密度合金制品等领域，我公司一直被国内外同仁视为重要的贸易伙伴。

Universities are stewards of living tradition – in Widener and Houghton and our 88 other libraries, in the Fogg and the Peabody, in our departments of classics, of history and of literature.

大学是那些活生生的传统的管理员----在Widener图书馆与Houghton图书馆以及我们另外的88个图书馆，在Fogg与Peabody博物馆，在我们的古典学科的系科，在历史与文学的系科，都有活生生的传统。

According to internal reflection texture and external geometric configuration, there are 7 seismic facies identified, with the help of amplitude and continuity, on the PaleogeneNeogene seismic reflection profile of studying area including parallel sheet seismic facies, subparallel wave seismic facies, progradational reflection facies, filling facies, hummocky facies, lens seismic facies and wedged facies.

从内部反射结构和外部几何形态出发，再辅之以振幅、连续性等参数，在研究区的古近系与新近系地震反射剖面上可以识别出7种地震相，分别是平行席状地震相、亚平行波状地震相、前积地震相、充填地震相、丘状地震相、透镜状地震相和发散地震相。

MATERIALS: The donor mice were the male F1 hybridism mice of cleaning inbred strain C57BL/6 and BALB/c mice or the cleaning C57BL/6 mice. The recipient was the cleaning female inbred strain BALB/c mice. These mice were used for establishing leukemia models.

材料：供鼠为清洁级近交系C57BL/6小鼠和C57BL/6小鼠与BALB/c 小鼠杂交的雄性F1小鼠，受鼠为清洁级近交系雌性BALB/c小鼠，用于构建白血病小鼠模型。

We discover that under a general configuration the twist system of this mechanism belongs to the seventh special three-system, and all the twist axes are distributed on a hyperbolic paraboloid that is special and unusual and rarely studied. Under original configuration it belongs to the fourth special three-system.

我们发现：该机器人在一般位形下，它的所有运动螺旋轴线在空间分布的二次曲面是比较特殊的，罕见的，是过去理论上研究很少的双曲抛物面，属于第七种特殊三系，在起始位置时属于第四种的特殊三系。

The main manifestations of typical IAHS are continuing hyperpyrexia, hepatomegaly and splenomegaly; laboratory findings are decrease of white blood count, hemoglobin or blood platelet, hypertriglyceridemia, liver disfunction, elevation of serum ferritin, and the hemophagocytes in bone marrow.

典型的儿童感染相关性噬血细胞综合征临床以持续高热、肝脾大为主要表现，实验室检查以白细胞计数、血红蛋白及血小板中两系或三系减少、低纤维蛋白血症、高三酰甘油血症、肝功能异常及血清铁蛋白升高，骨髓找到噬血细胞为主要特点。

Some properties of inversions are proved, It indicates that the inversion is conformal, the image of line of curvature is still the line of curvature of the inversion S of the hypersurface S, the principal curvature, the total curvature, and mean curvature of S are the functions...

在n-1维超曲面的反图变换中，示明反图变换为保角表示法，曲率线系的反影仍为反超曲面的曲率线系，反超曲面的主曲率，全曲率与平均曲率为原超曲面的主曲率的函数等。 3。最后导出公式(1)在四维空间与通常空间之特殊形式

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％。