Theoretical analysis emphasizes on heat transfer both inside propellant and between igniter exhaust and internal grain surface.
理论分析着重研究了点火燃气与推进剂表面传热及推进剂内瞬态热传导规律。
This machine solves problem of leveling grain surface with large size, realizes the intention of leveling grain surface and saving time.
该平整器解决了大粮面平整的难题,实现了使整体粮面平整如镜和节省工时的设计初衷。
Experimental studies show that changes in wettability of mineral grain surface affects seriously the dispersive stability of the mineral pulp as a suspension system.
实验研究表明,矿粒表面润湿性的变化严重地影响其悬浮液的分散稳定性,矿粒的疏水化往往伴随着明显的絮凝,此种絮凝无法用dlvo理论解释。
The machine is designed to finish grain surface and leather lining, further, the defects on leather surface, for beautiful, fine and smooth suede surface with full fell.
本机是制革行业用于皮革修饰粒面表面或修磨革里之工序,使加工后的皮革绒面美观,平整,均匀细致,手感丰富,同时去除革面缺陷。
Mechanical ventilation combining with covering grain surface by rice husk were used to keep moisture of late indica rice of high moisture content and safely spend summer.
利用机械通风结合粮面稻壳压盖控温技术,进行了偏高水分晚籼稻谷保水度夏试验。
Further increasing the substrate temperature broadens the band tail width of the films because the hydrogen content is too low to passivate the dangling bonds at the NC silicon grain surface.
对应更高的衬底温度,因薄膜中的氢不能完全中止纳米晶粒界面的悬键,使薄膜能带带尾加宽。
Quartz grain surface textures in coastal dune sand which is mainly derived from beach sand have features characteristic of both typical aeolian environment and inheritable and reformable beach sand.
本文通过对广东和海南海岸沙丘砂石英颗粒的扫描电镜分析,认为其表面结构特征,既具有典型的风成环境特征。
Chemical graining: the lithographic plate surface is etched to produce a fine grain by the application of a strong acid or alkali solution.
化学磨版:用强酸或强碱溶液在平版印版的版面上腐蚀,造成幼细微粒表面。
For this method, it is important that the entire burning surface of the grain ignite simultaneously.
对于这种方法,这是非常重要的整个燃烧表面的粮食同时点燃。
Scanning electron microscope (SEM) and X-ray diffraction (XRD) were used to measure the surface morphology, the crystal microstructure and the distribution of diamond grain in the film.
用扫描电镜(sem)和X射线衍射(XRD)方法检测了复合膜的表面形貌、晶体显微结构和复合膜中金刚石颗粒的分布情况。
The competition between the diffusion of deposited particles and grain growth of thin films determines surface evolution of thin films.
沉积粒子的扩散和晶粒生长之间的竞争决定了薄膜表面演化。
With the secondary duplicated model structure with high magnification, the surface grain structure of LF6 aluminum alloy superplastically deformed is observed.
借助于高放大倍率的二次复型组织,观察了LF6铝合金超塑变形后的表面晶粒组织。
This paper advanced a study method that can observe plastic deformation behavior of surface layer of die cavity by showing austenite grain, size, crack morphology and propagation mode.
提出了通过显示奥氏体实际晶粒度、裂纹形貌和扩展方式来分析热锻模具型腔表层塑性变形行为的试验方法。
The cause of surface coarse grain of aluminium profile is analyzed.
分析了铝型材表面晶粒粗大的原因。
The feature include grain size feature, surface feature of quartz sand. geochemistry feature and so on.
所讨论的特征包括黄土颗粒的大小,石英颗粒表面特征,以及地球化学意义,等等。
It is shown that the surface roughness is mainly related with the average grain size and feed per wheel revolution for the brittle materials such as single silicon.
研究结果表明,对于单晶硅等脆性材料,其表面粗糙度主要与砂轮的平均磨粒尺寸、进给量等因素有关。
The effects of grain boundaries with high energy or high mobility and surface atmosphere on the growth of Goss grains are discussed.
讨论了高能晶界理论、高迁移率晶界理论、表面气氛等对高斯晶粒长大的贡献。
Epitaxial diamond films and polycrystalline diamond grain were obtained on (100), (110) and (111) surface of synthesized single-crystal diamond substrates.
在金刚石的(100),(110)和(111)面上分别获得了单晶金刚石膜和金刚石多晶粒子。
The results show that high content of impurity elements, segregation along grain boundaries and uneven grain size are main reasons for the surface damage of domestic tungsten targets.
结果显示,杂质元素的含量偏高和沿晶界的偏析以及不均匀的钨晶粒是造成国产钨靶表面损伤的主要原因。
The area calculating formulas of burning surface and channel section have been derived by the grain geometry.
根据装药几何形状,导出了在火箭发动机工作过程中燃烧面积及通道截面积变化规律的计算公式。
The grain characteristic of falling dust and different height surface and their relationship were analyzed by the field observation data.
研究以野外观测为主要手段,分析了不同高度大气降尘与不同下垫面沙粒的粒度特征及二者间的关系。
The steel plate surface has a cultured and clear wood grain ectype and inhibit square space pattern the beauty is generous.
钢板表面具有典雅清晰的木纹浮雕,并压制方格图案,美观大方。
By analysis of sand grain size in sediment microenvironment of modern rivers, the size and shape of grain and surface texture feature of quartz grain were described in this paper.
本文根据现代河流的已知沉积微环境中的砂样分析,阐述了河北平原河流沉积物的粒度成分、形态和石英颗粒的表面结构特征。
Surface grain refinement of turbine blades in Ni based superalloy K18 were studied by comparison of experimental results in different alloys and mold surface materials.
选用K 18合金和纯金属镍及不同的面层细化料,通过实验对比研究了镍基高温合金叶片表面晶粒细化机理。
Various properties of coarse-grain WC powder are described, as well as the alloys made by coarse-grain WC powder and its uses of all kinds in hard-surface materials.
评述了粗晶碳化钨粉的各种特殊性能,列举了用粗昌碳化钨粉制成的合金及粗晶碳化钨粉在硬面材料中的多种多样的用途。
It is showed that the surface roughness is mainly related with the average grain size and feed per wheel revolution for the brittle materials such as single crystal silicon.
研究结果表明,对于微晶玻璃等脆性材料,其表面粗糙度主要与砂轮的平均磨粒尺寸、砂轮速度、进给量及磨削深度等因素有关。
It is showed that the surface roughness is mainly related with the average grain size and feed per wheel revolution for the brittle materials such as single crystal silicon.
研究结果表明,对于微晶玻璃等脆性材料,其表面粗糙度主要与砂轮的平均磨粒尺寸、砂轮速度、进给量及磨削深度等因素有关。
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