查询词典 tangent surface

G.E.Hubb root is from 0.20mm to 0.50mm, and 95% roots, diameter is thinner than 0.40mm. The total surface areas of roots is 10139.68cm^2, and the surface areas of roots is about 2 to 3 times to soil surface areas in the surface layer. Enlacing sod concretion to soil profile of Eulaliopsis binata G.E. Hubb root and the gigantic adsorption to soil grains of root surface are the mechanism why Eulaliopsis binata G.E. Hubb can reduce null and water loss significantly. The monitoring result from 2003 to 2004 indicates that, when the gradient is 12 degrees, the runoff rate of planting Eulaliopsis binata Retz. G.E. Hubb completely after changing slope land to ladder (PECC, so as the follows is only 49.90m^3/hm^2?yr. and the soil loss rate is 155.78kg/hm^2?yr, however, the runoff rate of fanning and being not change slope land to ladder is 314.29m^3/hm^2?yr that is 6.30 times to PECC ,and the soil loss rate is 3322.50 that is 21.33 times to PECC; When the gradient is 24 degrees, the runoff rate of planting eulaliopsis binata G.E, Hubb in the ridge and border slope land after changing slope land to ladder is 248.04m^3/hm^3?yr and the soil loss rate is 612.00kg/hm^3?yr. the runoff rate of PECC is only 42.44m^3/hm^2?yr and the soil loss rate is 153.75kg/hm^2?yr, however, the runoff rate of ENC reaches to 785.73m^3/hm62?yr that is 3.17 times to PERBC and 18.52 times to PECC, and the soil lose rate reaches to 37503m^3/hm^2 yr that is 61.33 times to PERBC and 244.12 times to PECC.

蓑草根系平均直径0.20~0.50mm， 95%的根系平均直径小于0.40mm，根系总表面积10139.68cm^2，在土壤表层根系表面积高达土体表面积的2~3倍，根系表面对土壤颗粒的巨大吸附作用是蓑草显著提高土壤抗侵蚀能力的另一个重要原因。2003~2004年的监测结果表明，在12度坡度情况下，坡改梯后净作蓑草年径流量仅49.90立方公尺/hm^2，年土壤流失量为155.78kg/hm^2，而未坡改梯且农作情况下，年径流量314.29立方公尺／hm^2为前者的6.30倍，年土壤流失量3322.50Kg/hm^2为前者的21.33倍；在24度坡度情况下，坡改梯后土埂及边坡种植蓑草、坡面农作年径流量248.04立方公尺/hm^2，年土壤流失量612.00kg/hm^2，坡改梯后净作蓑草径流量42.44立方公尺/hm^2，土坡流失量l53.75kg/hm^2，而未坡改梯且农作情况下年径流量高达785.73立方公尺/hm^2，分别为处理1的3.17倍，处理2的18.52倍，年土壤流失量高达37503kg/hm^2，分别为处理1的61.33倍，处理2的244.12倍。

In the part of grinding surface integrity, the surface integrity of ground superalloy GH4169 such as grinding surface roughness, surface hardening, surface residual stress and metallographical microstructure have been studied.

确定了上述表面完整性指标与磨削参数之间的关系，并根据正交试验建立了磨削表面粗糙度、表面硬化和表面残余应力的经验公式。

Three part of research works had been carried out in the dissertation. The first part: a kind of multidentate amine modified silica gel was synthesized through the following steps:(1) introduce the amino groups onto the surface of silica-gel by the treatment of surface silanol groups withγ-aminopropyl trimethoxy silane;(2) michael addition of excess trihydroxymethyl propyl triacrylate to amino groups on the silica gel surface;(3) amidation of the unreacted double bonds of TMPTA on the surface of TMPTA modified silica gel with diethylenetriamine;(4) the multidentate amine modified silica gel was finally obtained by the reaction of amino groups on the surface of DETA modified silica gel with double bond of butyl acrylate.

本论文进行了三部分研究工作，第一部分：通过多步反应对硅胶进行改性合成了一种多齿胺改性硅胶配体，合成过程如下：1通过γ-氨丙基三甲氧基硅烷与硅胶表面的硅羟基反应，使硅胶表面带有氨基；2利用硅胶表面氨基与过量的三羟甲基丙烷三丙烯酸酯发生Michael加成反应；3利用二乙烯三胺与TMPTA改性硅胶表面未反应的双键发生反应使硅胶表面氨基化；4最后用丙烯酸正丁酯与DETA改性硅胶表面氨基充分反应成功合多齿胺改性硅胶配体。

A progressive sequence of dies for forming a cavity having a desired length, width and depth, comprising: a plurality of extendable punches, each with an impact surface, said impact surfaces alternating between a first desired pattern comprising a plurality of piercing points and a second desired pattern comprising an essentially flat surface, the length and width of each said impact surface approximately equal to the desired length and width of said cavity; a die body including a plurality of apertures adapted to receive each said punch; an opposing post positioned within each said aperture having an impact surface congruent with each said impact surface; and at least one moveable forming bushing supported by at least one forming bushing actuator slideably engaged to each said opposing post.

形成有被需要的长度、宽度和深度的一个洞的一钢模的前进序列，包含：一个可扩充打洞器的多数，每个与一个冲击表面，说冲击升至水面交互的在组成一个刺骨点的多数的一个首先需要的式样之间而且秒需要了组成一个本质上平坦的表面、长度的式样，而且每个的宽度对被需要的长度和说的洞宽度说大约相等的冲击表面；一个包括一个孔的多数一钢模身体适应接受每个说打洞器；放置在每个里面的反对职位说孔让一种冲击升至水面适合的与每个说冲击表面；而且至少被可滑动地每个被预订到的至少一个形成桥衬主动器支援的一个家具形成桥衬说反对职位。

Two kinds of silicon samples with distinct surface treatment, i. e., one surface was chemically etched and the other was unetched, were used to investigate the characteristics of leakage current and surface flashover of semiconductor under impulse voltage in vacuum. The experimental results showed that the surface conditions of samples affected these characteristics greatly. Before flashover, the Ohmic current was observed for unetched samples and the space charge limited current for etched samples, respectively. Meanwhile both samples showed quite different flashover tracks, and the surface-etched samples displayed a much higher onset voltage of flashover.

对采用和未采用表面化学腐蚀处理的半导体硅在冲击电压下的实验表明（参见 Zhang et al ， Applied Physics Letters， 2002），试品的表面状况对其泄漏电流和沿面闪络特性有着很大的影响：在沿面闪络之前，未经处理试品的泄漏电流表现为 Ohm 性电流，而表面处理过的试品表现为空间电荷限制电流特性；同时两类试品表面的闪络通道也表现出不同的特征，而采用表面化学腐蚀处理可以明显提高其沿面闪络电压。

In feature-based reverse engineering, with the research of surface feature handling done wieldy and deeply, a methodology of surface-feature based re-modeling has come into being, with which the quadric surface, simple free-form surface and blend surface feature can be directly extracted from point cloud conveniently.

目前，在基于特征的反求工程中，有关曲面特征处理的研究已经比较深入，可以方便的直接从点云数据中提取二次曲面特征、简单自由曲面特征和过渡曲面特征，基本形成了一种基于曲面特征的反求工程CAD建模方法。

Some methods of surface functionalization of hollow glass microsphere are reviewed, such as surface coating, surface grafting, surface metallization and surface zeolitization.

综述了空心玻璃微球表面包覆、表面接枝、表面镀膜、表面沸石化等改性方法，并就其在隐身、环境等领域的应用进行了探讨。

The weight percentage for the components of the hyaline coating is as follows: SiO2 45 to 54 percent, B2O3 15 to 20 percent, one or more of Na2O, K2O and Li2O, 10 to 24 percent, one or more of TiO2, ZrO2 and ZnO, 6 to 18 percent , and the rest is one or more of CaO, MgO and CeO2. Firstly, the glass powder is mixed with the mill additions to be pulped and then plated on the surface of titanium or the titanium alloy. After being dried, the surface of titanium or the titanium alloy is directly used for a thermal hydrogen treatment or smelted at a temperature of 900 to 1, 000 DEG C for 15 to 30 minutes and then a hyaline coating with a thickness of 20 to 70 micrometers is formed on the surface of titanium or the titanium alloy; secondly, titanium or the titanium alloy plated with the coating is conducted a thermal hydrogen treatment. After the treatment technique is finished, the coating flakes off automatically in the process of cooling; and finally, a surface treatment is supplemented to meet the requirement of the workpiece surface.

该玻璃质涂层成分按重量百分比：45-54SiO2，15-20B2O3，10-24Na2O、K2O、Li2O中的一种或多种，6-18TiO2、ZrO2、ZnO中的一种或多种，余量CaO、MgO、CeO2一种或多种，将玻璃粉与磨加物混合制浆并涂覆在钛或钛合金表面，干燥后直接用于热氢处理，或在900-1000℃下熔烧15-30min，在钛或钛合金表面制得20-70微米玻璃质涂层，随后将制有该涂层的钛或钛合金置于氢气气氛下进行热氢处理，处理工艺结束后，涂层在冷却过程中自剥落，最后辅以表面处理即可满足工件表面要求。

Basic symbols;Coatings;Definition;Definitions;Dimensions;Drawing specifications;Drawings;Engineering drawings;Finishes;Geometric;Geometrical product specification;GPS;Graphic representation;Graphic symbols;Inscriptions in a drawing;Letterings;Machining;Machining tolerances;Marks;Product specifications;Production processes;Products documentation;Ratings;Reference length;Reference lines;Representation of characters;Roughness;Roughness value;Specification;Statement;Surface properties;Surface roughness;Surface texture;Surface treatment;Surface-roughness measurement;Surfaces;Symbols;Technical drawing;Treatment;Wear-quantity

中文标题产品几何量技术规范。技术产品文件中表面结构的表示方式中文主题词图形表示；参考长度；尺寸；加工公差；表面性质；产品规范；覆层；制图规范；精整；表面粗糙度；粗糙度；表面粗糙度测定；表面结构；磨损量；图纸标题；表面处理；技术制图；几何的；基准线；图形符号；符号；标记；加工工艺；文字书写；产品文件；定义；表面；粗糙度值；工程图；额定值；产品几何量技术规范；GPS；叙述；处理；图纸；机械加工；字符表示；基础符号；规范验收

Section method is to split the pit slope surface into several trapezoids so as to calculate their surface area;through a digital survey of the pit slope surface,a numerical elevation model is set up,on the surface the triangular mesh is built,and all the triangular meshes are piled up to get the surface area.

小三角锁法是通过对宕口坡表面数字化测量，根据测量数据建立数字高程模型，并在表面建立小三角锁，对所有小三角的面积累加得到面积的一种方法。小三角锁法大大提高了计算的准确度和效率。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。