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Under the scanning electron microscope , for the first time we compare and study both the coalified tracheids through chemical maceration and permineralized tracheid lumen casts. This method reveals the microstructures of wall and perforations of G-type tracheids: 1 The lignified layer of secondary wall is composed of uneven material and further divided into S〓, S〓, S〓 layers; with the smooth enclosing wall, the perforation is internally dumbbell-shaped; 2 In Huia gracilis, the enclosing wall of tracheidal perforation contracts and possesses secondary perforations. The perforation has thickened border facing the tracheid lumen.

本文首次在扫描电子显微镜下对比研究经化学浸解获得的碳质管胞和矿化的管胞腔铸体，明确揭示出了G-型管胞壁层和穿孔的显微结构：1）Hsüa reflexa次生壁木质化层的组成不均一，分为S〓、S〓和S〓层；穿孔腔为哑铃形，腔壁光滑；2）Huia gracilis的穿孔腔收缩，腔壁上发育次级穿孔，孔口具有边缘加厚。

As an idiomatic expression in Chinese,欲穷千里目,更上一层楼 Would you command a prospect of a thouand li?

欲穷千里目，更上一层楼如今已成为名句，经常被引用来鼓励人作进一步的努力。

Life is like a onion:You peel it off one lager at a time,and sometimes you weep.

生活就像洋葱：你只能每次一层一层的剥，有时候你还会流泪。

The layer of slivers is pulled through the rollers at increasing speeds; as the layer leaves the unit, the fibers are pulled into a new sliver and delivered to cans ready for the lapper.

沿棉层的前进方向，每一对罗拉的转速均高于前一对罗拉的转速，这样棉层通过一系列罗拉时速度逐渐提高。在棉层被输出时，被拉伸成一根新的棉条，送至成卷机的条筒。

In the surface of the substrate the liquid crystal molecules parallel to the surface as a consequence of the surface potential. Adopting the Lebwohl Lasher model, the mole cular centers of mass are located at the sites of the simple cubic lattice with period boundary conditions.

在基板表面处，液晶薄层受到表面作用势的作用使液晶分子沿面平行排列，采用Lebwohl Lasher模型，将分子质心固定在简单立方晶格的格点上，并对此格点模型赋以周期性边界条件，然后将简立方格点模型分为平行于基板的20个分子薄层，得到各薄层的指向矢分布的数值结果。

The pore structure character of reservoir of Paleogene in Melut Basin of Sudan was analyzed by studying the effect of lithology, diagenesis, pore types and clay minerals on pore structure. This reveals micro-features of the reservoir and its effects on development result. Reservoir lithology is mainly lithic quartz arenite and feldspathic quartz arenite, which has low textural maturity.

从储层的岩性、成岩作用、孔隙类型及影响孔隙结构的因素等方面，对苏丹穆格莱德盆地古近系储层的孔隙结构特征进行了分析，揭示了该储层的微观特征及其对开发的影响。

At the end of the first floor is the Mess Hall which players have to pass through to reach the second floor.

第一层的尽头是食堂，玩家穿过此处到达第二层。

In this paper, we focus on the research and the new development of the copper metallization and the diffusion barriers.

本文介绍了大马士革工艺中铜金属化以及阻挡层的研究现状。关键词：超大规模集成电路；金属化；铜互连；阻挡层

In this paper, we fabricate functional microgel capsules that consist of two miscible yet distinct layers.

本文装配了一种用两层的功能化微凝胶囊，这两层易于混合却能够分辨。

The potential temperature and mixing ratio profiles and their variations with time are computed from the model.

模式计算所得位温，混合比垂直廓线和混合层厚度等随时间变化基本反映实际大气边界层的一些特点。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。