查询词典 thickness

Bamboo first crystallizes then lignifies during bamboo shoot growth and basically forms crystal structure in one month. 1-year-old bamboo culm ends growth and its height,thickness, volume almost change little, but culm tissue is small and tender and there is more water and less substance in it. Bamboo crystal proportion keeps invariable during this period.2-year-old bamboo culm begin to lignify,its cellulose proportion debases and its crystal proportion decreases. Bamboo lignin debases, crystal proportion changes a little in the end of this period.Many-old-year bamboo culm crystal proportion is almost invariable. Freaky bamboo cell wall crystal region's thickness is less than normal bamboo's. Bamboo cross section crystal area and the ratio of long axis to short axis are less than normal bamboo's,and roundness,irregular index, the fiber cap density per unit area increase more than normal bamboo's.

竹笋生长阶段是先结晶后木素化的过程，一个月内细胞壁结晶组织基本形成；2）一年生竹材的植株秆茎生长结束，秆茎的高度、粗度和体积变化不大，但秆茎的组织幼嫩，含水量高，干物质少，竹材结晶度基本不变；3）二年生竹材的植株开始木质化，纤维素比例降低，结晶度减少，到后期竹子木质化降低，竹材结晶度变化不大；4）多年生竹材的结晶度没有太大的变化，结晶度大小处于波动状态；5）畸形竹材纤维帽细胞壁结晶区的厚度比正常竹小，其横截面结晶区的面积、纤维帽长轴与短轴比有所减少，而圆形度、异型指数有所加大，单位面积纤维帽的密度增大。

Objective To evaluate the clinical significance of the distribution characteristics and thickness of lumbosacral canal fat in normal adults, and to assess the relevant factors of the fat thickness.

目的 评价正常成人腰骶段椎管内脂肪的分布特征和厚度范围的临床价值，探讨与脂肪厚度相关的影响因素。

In present study, the model of the low shear stress in carotid or hypertension was established by the ligation of partial distal branches of the left common carotid or the coarctation of aorta in SD rats respectively. In some rats the low shear stress in carotid was accompanied by the hypertension. The media and intimal thickness, as well as the ratio of vessel thickness to inner diameter were determined by morphometrical approach.

本文通过腹主动脉缩窄、结扎左颈总动脉的部分分支建立了高血压、左颈总动脉低切应力、以及高血压伴有低切应力大鼠动物模型；几何形态学方法观测左颈总动脉的壁厚及壁厚/内径比的变化；金属蛋白酶谱法分析MMP-2活性；免疫印迹法检测信号通路分子p-Akt、p-38分子以及Rho GDIα的表达变化。

But it has more complicated velocities in the working area, and it locally develops high-speed boulder bed in neocene Xiyu Formation with a velocity 3700—4050m/s, its adjacent formation velocity: 2800—2900m/s; while it also develops low velocity gyprock that has a great variation in thickness (with an increasing thickness from south to north) with a velocity about 4000 m/s, its adjacent formation velocity: about 5000 m/s. And all this is the cause of the complexity of the velocity in this working area; thus to make the No.1 structure in northern YK reliable, in velocity modeling it has much research work to do, and it is also the topic of this graduation thesis.

但在工区内速度较为复杂，工区内局部发育上第三系西域组高速砾岩层，速度约在3700—4050m/s ，围岩速度约在2800—2900m/s，同时全区还发育有厚度变化较大的低速膏岩层，膏盐层的速度大约在4000 m/s，围岩的速度大约在5000 m/s，由此造成了本工区速度的复杂性，因此要准确落实亚肯北1号构造，还要在速度建模等方面做许多的研究工作，这也是本次毕业论文所要研究的课题。

The paper's formula is fit to determine the thickness of the concrete mattress under wave in the bottom protection engineering. The Netherlandish formula and the formula in code are fit to confirm the thickness in the revetment.

研究结果表明，三个公式的工作状态并不相同，对于淹没海滩护底一类工程，半理论半经验公式较为合适；对于非淹没的斜坡护坡，荷兰或水利部公式较为适用。

Most manufacturers use frequency induction hardening process, after the nitrogenation or chromeplating, nitrogenation of thickness of 0.5 to 2.7 0.6 ㎜, chrome-plated layer thickness ㎜ 0.10 ~ 0.15, mainstream technology for after the chromeplating frequency induction hardening.

目前多数厂家采用复合处理，中频淬火后进行氮化或镀铬，氮化层厚度为0.5～0.6㎜，镀铬层厚度为0.10～0.15㎜，主流工艺为中频淬火后镀铬。

Design the structure of high performance Low-E film including its material and thickness of every layer according to basic optical theory. Carry out an innovative work to calculate its optical performance by characteristic matrices and optical admittance. Compare the results with those we get by traditional measurement.3. Prepare Low-E films with RF magnetron controlled reactive sputtering. The result shows that in the visible region (380nm-780nm), the highest transmittance is 82.4% while the average value is 75%. In the NIR region (780nm-2500nm), the average transmittance is 16.2%. These characters can fit the demand of the glass used in architecture and cars, and also in other applications.4. We novelly use the material Titanium as protective layer to solve the problem that Ag layer would disappear when depositing the second TiO_2 layer. As the protective layer, Ti does not increase the number of targets so as to lower the costs. The thickness of the protective layer Titanium is adjusted by controlling of sputtering time. Results shows the Low-E films get the best optical character when the sputtering time of Titanium is 20 seconds5. We novelly proposed a new transmittance quality factor Q=_·(?_-__ to evaluate the performances of Low-E films, which makes it easier to judge the qualities of Low-E film.6. The photocatalysis of Titanium dioxides is researched and introduced into Low-E films. Sb-doped TiO_2 thin films are prepared. Its photocatalysis and hydrophilicity are measured.

论文的工作主要有：1、总结了低辐射薄膜的制备方法，性能，以及国内外最新研究进展和应用，并对两种类型的低辐射薄膜进行了比较。2、从光学基本理论开始，设计了离线低辐射薄膜的结构，包括每一层的材料和厚度，并创新性的用特性矩阵和光学导纳理论计算了该离线膜的光学性能，利用软件对其进行了仿真，与实际制备的薄膜所测量的性能相比较。3、完成在实验室仪器上制备低辐射薄膜，掌握其工艺条件，解决了超薄金属膜的制备问题，所制备的低辐射薄膜在可见光区(380hm-780hm)最高可达82.4%，平均透射率为75%；在近红外区(780nm-2500nm)的平均透射率为16.2%，其性能达到建筑物幕墙玻璃，汽车前挡玻璃等应用标准，并为进一步的大规模生产打下基础。4、针对中间银层在镀上层膜时易被氧化这一工艺难题，本研究创新性的提出用Ti膜作为保护膜，没有增加新的靶材，提高了生产效率，并节约了生产成本。

As introduced by relative information, for foreign plants have not solved the joints between over-voltage crosslinked polythene cables so far, the second method should ensure that the crosslinked polythene layer of excessive thickness filled during the later pressed heating sulfuration process has nohuge air hole is produced and left if the thickness extruded at one time is overlarge to 15～30mm during the process of plastic extruding XLPE crosslinked polythene to recover insulation.

第二种方法，据有关资料介绍，由于国外厂家还未解决超高压交联聚乙烯电力电缆的中间接头，在绝缘恢复挤塑XLPE交联聚乙烯的工艺过程中，一次挤出的厚度如果过大，达的时候，要保证填充的过大厚度交联聚乙烯层在后期加压加热硫化工艺中，不产生留存有大的气孔。

During LASIK surgery, central corneal thickness was measured with ultrasonic pachymeter. We created a corneal flap using Mona M2 microkeratome with an intended flap 130 μm, and then central conical thickness was measured again.

在LASIK手术中，我们会先用超音波量角膜厚度，接著用标记角膜皮瓣厚度110μm的Moria M2角膜板层刀切了角膜皮瓣后，再量剩余角膜厚度，两者相减即为角膜皮瓣的厚度。

With the seeds from nine natural Cyclocarya paliurus populations as test materials, their phenotypic traits, including 1000-seed weight, seed size, seed diameter, seed thickness, and seed diameter/thickness ratio, were investigated, and the phenotypic diversity among and within the populations were studied by the methods of ANOVA analysis, hierarchical cluster analysis, and correlation analysis.

以青钱柳分布区内的9个天然群体种子为试材，对种子千粒重、体积、直径、厚度和径厚比5个表型性状进行了系统的比较分析，采用方差分析、相关分析及聚类分析等方法对群体间和群体内的表型多样性进行探讨。

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％。