1) gem-quality crystal
优质晶体
2) two-step carburization
优质粗晶
1.
High guality course-grained WC powder was produced by two-step carburization, which is possessed of character of high carbide carbon, low free carbon, unique phase, low impurities, uniform grain and sub-grain size,micro-defects-free and low dislocation density, and so as to prevent the bombard of WC powder.
采用二步碳化法制备出了优质粗晶WC粉末,该粉末具有化合碳高,游离碳低,为单一相,有害杂质含量少,晶粒均匀,晶内亚晶尺寸均匀,不含显微缺陷,较低的位错密度等特性,并解决了WC炸裂问题。
3) aconteta
优质水晶
4) Top crystal
优质晶钻
5) crystal quality
晶体品质
1.
The relationship between toughness index of synthetic diamond and crystal quality was studied by measuring with toughness index apparatus and diashape system.
采用冲击韧性仪和Diashape系统对不同品级的金刚石样品进行冲击韧性和晶体品质测定,探讨金刚石冲击韧性与品质参数之间的相关性。
2.
The crystal quality and properties of spherical HMX such as particle size distribution,morphology,particle defects,chemical purity,thermal properties and sensitivities were characterized by laser light scattering,optical microscopic,optical microscopic with matching refractive index,density gradient technique,differential scanning calorimetry(DSC)and sensitivity tests.
分别采用激光粒度仪、光学显微镜、高效液相色谱、X-射线衍射等方法对球形化处理前后的奥克托今(HMX)颗粒的形貌、化学纯度、晶体缺陷等晶体品质进行了表征,采用TG-DSC和5s爆发点实验研究了其热性能,测试了其撞击感度、摩擦感度和静电感度。
3.
The relationship between toughness index of synthetic diamond and crystal quality was studied by measuring with toughness index apparatus and diashape system.
采用冲击韧性仪和 Diashape 系统对不同品级的金刚石样品进行冲击韧性和晶体品质测定,探讨金刚石冲击韧性与品质参数之间的相关性。
6) crystalloid
[英]['kristəlɔid] [美]['krɪstḷ,ɔɪd]
晶体物质
1.
This article also discussed the orderliness of nature distribution and various microelements as well as crystalloids in aerosol at each height.
讨论和研究了气溶胶中不同高度微量元素及晶体物质的垂直分布规律和部分污染物的来源,为河南省和郑州市大气气溶胶的研究奠定了基础。
补充资料：铝合金挤压制品的粗晶环
铝合金挤压制品的粗晶环
coarse grain ring of extruded aluminium alloy product
IOheJ一nJ一yo zh1P旧de euJ一nghuon铝合金挤压制品的粗晶环(coarse grain ringof extruded aluminium alloy produet)宇吕合金加工制品缺陷的1种。挤压制品末端周边具有粗大的再结晶晶粒区，单孔模挤压呈环形，多孔模挤压呈月牙形。 粗晶环是采用无润滑正向挤压制品中固有的·种缺陷。沿挤压制品周边形成的粗大晶粒区，降低制品的抗拉强度和屈服强度，提高伸长率。如高强硬铝合金2A12(IY12)淬火自然时效状态棒材的粗晶环区(见图)，与正常区相比.纵向么降低84一92MPa，丙2降低60~64MPa才提高3%一4%。 对粗晶环的形成机理各国有许多研究，早期文献认为由于发生二次再结晶而形成;20世纪70年代以来多数研究结果证明是由于亚晶合并产生的一次再结晶形成。 影响粗晶环的因素较多，低锰的合金形成粗晶环严重，含错的合金可减轻粗晶环。铸锭均匀化退火温度高和挤压温度低，均使粗晶环区深度增加。采用反挤压、润滑挤压和冷挤压工艺可显著减轻粗晶环，甚至完全消除。降低热处理温度和缩短保温时间也可减小粗晶环深度。「肇几 高强硬招合金2八1别{_Y12)挤压棒材淬火自然 时效状态的粗晶环 (咚长清)
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