查询词典 grain

The composition of TB6 alloy ingots after heat treatment then water colling and air colling was analyzed. The results show that the segregation in the grain boundary is more serious than the segregation in the grain both in air cooled ingot and quenching ingot, the composition in grain boundary are not uniform; the segregation of Fe is more serious than the segregation of Al and V; the composition in air cooled ingot and quenching ingot are more uniform than the composition in cast; the segregation in quenching ingot is lowest, quenching can reduce the segregation.

中文摘要：对热处理之后进行水冷与空冷的TB6合金铸锭进行了成分分析，对两种热处理所得结果进行分析，发现无论铸态还是空冷与水冷之后的试样，晶界偏析总比晶内严重，而且晶界处的成分分布很不均匀；Fe元素的偏析要比Al元素与V元素的偏析严重；空冷与水冷后的试样，各个元素分布较原始态的更加均匀，各测试点之间的差距减小；水冷之后的试样成分分布更理想，比空冷的效果好，水冷可以显著改善TB6合金铸锭偏析现象。

Experimental results show that rapid solidification technology can remarkably optimize Mg-Zn-Nd alloy's microstructure and property,there are three zones of fine grain zone,columnar grain zone and equiaxial grain zone in ribbon's solidification structure,which reserve structure character of cast-magnesium alloy.

结果表明：快速凝固技术可显著优化Mg-Zn-Nd合金的组织结构与性能；薄带的凝固组织分为细晶区、柱状晶区、等轴晶区三个区域，保留了铸态凝固组织的特性；快速凝固技术的细晶强化和固溶强化可明显改善Mg-Zn-Nd合金的强度与塑性。

The recent development of grain refining, interaction between Si and grain refiners, and grain refining mechanisms in hypoeutectic Al-Si casting alloys are overviewed in this paper.

仅对Al-Si铸造合金细化处理的最新进展、Si与晶粒细化剂的交互作用和晶粒细化机理进行综合评述。

The result makes clear, xiang Di decides size of grain of course complex Mg2 jumbly (100~600 Nm), grain of retrorse titrate complex slants small (200 Nm controls), distributinging concentration of diameter of bead of grain of two-way titrate complex (400 Nm controls).

结果表明，正向滴定过程合成的Mg2晶粒大小混杂(100~600 nm)，反向滴定合成的晶粒偏小(200 nm左右)，双向滴定合成的晶粒粒径分布集中(400 nm左右)。

Twelve density treatments were designed, which were 225×10^4 (T1), 300×10^4 (T2), 375×10^4 (T3), 450×10^4 (T4), 525×10^4 (T5), 600×10^4 (T6), 675×10^4 (T7), 750×10^4 (T8), 825×10^4 (T9), 900×10^4 (T10), 975×10^4 (T11) and 1050×10^4 (T12) basic plants/hm^2. Grain dry matter growing process and grain filling rate could be described by Richards Model and Monodic Quadratic Equation, and the grain filling parameters could be calculated from Richards model fomula. Relation analysis, stepwise regression analysis and path analysis were made by DPS, SPSS software.

方法设计了225万(T1)、300万(T2)、375万(T3)、450万(T4)、525万(T5)、600万(T6)、675万(T7)、750万(T8)、825万(T9)、900万(T10)、975万(T11)、1050万(T12)基本苗／hm^2共12个密度处理，分别运用Richards模型、一元二次方程模拟了冬小麦籽粒干物质增长过程及籽粒灌浆速率随花后时间的变化情况，并对所建立的Richards模型进行推导得到基本的灌浆参数，通过SPSS、DPS软件对籽粒灌浆参数与千粒重进行相关、逐步回归及以及通径分析。

But the grain growth, grain semiconduction and grain boundary insulation were influenced by many factors, such as the type and contents of dopants, sintering temperature and so on. Therefore, in this thesis the effect of the restore sintering temperature, the oxygenize temperature, the donor and acceptor dopant on the dielectric and varistor properties of devices were studied. With SEM, the microstructure of SrTiO3-based double function ceramic was analyzed.

而晶粒生长、晶粒半导化和晶界绝缘化受到多种因素的影响，诸如杂质的种类和含量、烧成温度等，因此本论文研究了还原烧成温度、中温氧化温度、施主和受主掺杂等对SrTiO_3基陶瓷的压敏和介电性能的影响，并借助于SEM分析对SrTiO_3基双功能陶瓷的微观结构进行了分析。

Those have secret touch and the narrate in detail with beautiful form, or expression is natural grain appearance, or expression is geometrical grain appearance, or expression is abstract grain appearance, figure and recorded hunan person racily to be happy to decorate, be good at decorate and

那些具有神秘感和形式美的铺陈，或表现为自然纹样，或表现为几何纹样，或表现为抽象纹样，形象而生动地记录了楚人乐于装饰、善于装饰和

Compared to the sample without ultrasonic treatment, it was found that, for AZ31 magnesium melt alloy treated by ultrasonic, the refined grain size and the inproved distribution of grain with its shape of oval-shaped or spherical can be obtained, and the precipitation inside Al matrix was inhibited The Mg17 Al12 precipitates distributed mainly along the grain boundary and hardness was improved remarkedly.

通过对铁合金AZ31进行熔体超声处理发现，处理后试样的晶粒较未进行超声处理的试样有明显细化，分布均匀程度提高，形状呈椭圆状或球状，合金元素Al在晶粒内的析出被抑制，Mg17Al12第二相的析出主要集中于晶界，硬度有明显提高，并且通过试验确定出了最佳处理功率和时间，为超声波在铸造生产中的应用提供了依据。

The sample which has retrogressive phenomenon precipitates the secondary phase during re-ageing treatment subsequently, and the reprecipitation sequence is due to the grain size caused by severe plastic deformation. There is a critical grain size below which the reprecipitation sequence changes, the heterogeneous precipitation of phase at grain boundaries would suppress precipitation of metastable phases such as GP zones and η′ phase.

强变形导致回归后的合金在再时效处理时可再次沉淀析出第二相粒子，但析出相的析出顺序与强变形后合金的晶粒尺有相关，当晶粒细化到某一临界尺寸以下时，析出顺序发生改变，非均匀形核的平衡相可抑制GP区、η′亚稳相等前期粒子的析出。

Ninety-eight backcross inbred lines derived from a subspecific cross of Nipponbare/Kasalth// Nipponbare and its genetic linkage map were used to identify quantitative trait locus controlling rice appearance quality traits such as grain length, grain width, length-width ratio, percentage of grains with chalkiness, square of chalky endoperm, degree of endosperm and grain endosperm transparency by composite interval mapping over two year.

利用由98个家系组成的Nipponbare / Kasalath // Nipponbare回交重组自交系（backcross inbred lines，BILs）群体（BC1F9）及其分子连锁图谱，采用复合区间作图的方法，在2个不同年份对粒长、粒宽、粒形、垩白率、垩白大小、垩白度和透明度等7个稻米外观品质性状的数量性状基因位点（Quantitative trait loci， QTL）进行了定位分析。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。