The microstructural evolution of A356 produced by controlled pouring during partial remelting and isothermal holding was investigated in this study.
研究了控制浇注法制备A356合金半固态枝晶衍变规律,结果表明:原始显微结构对枝晶半固态衍变具有较大影响,对于原始组织粗大的树枝晶合金,即使经过长时间的保温,初生α相仍为枝晶网状结构;而原始组织细小的等轴晶迅速转变为球状结构。
The typical cell-to-dendrite transition is observed at the center of laser melt pool, and a detailed investigation on the transition conditions shows that the critical transition velocity determined by experiment agrees well w.
在激光熔池中观察到典型的胞枝转变，对转变的临界条件进行了深入研究，结果表明：实验确定的胞枝转变临界速度与最近提出的ＢＪＴ模型的预言值符合得较好。
Effects of monomers on performance of grafted starch size
接枝单体对接枝变性淀粉浆料性能的影响
Research on Starch Graft Copolymer as Warp Sizes Instead of PVA;
替代PVA的接枝变性淀粉浆料的研究
The Alternation of Songs of Bough of Bamboo in the Song Dynasty and the Poetic Style of Songs of Bough of Bamboo;
《竹枝》歌唱在宋代的变化与《竹枝歌》体
There are several modifications of the dendritic design.
树枝状图样有几种变态。
lac in its natural state as scraped off twigs and dried.
紫胶从嫩枝上刮下后变干的天然状态。
The sway of the branches became faster as the wind increased.
风变大时，树枝摇摆得更厉害。
A NEW CULTIVAR OF PLATYCLADUS ORIENTALIS (L.) FRANCO CV.‘CVCLOCLADUS’
侧柏的一个新栽培变种——‘圆枝’侧柏
Breeding of high γ-linolenic acid production mutant
雅致枝霉高产γ-亚麻酸突变株的选育
Genetic Variation in Natural Populations of Picea Asperata Mast.;
粗枝云杉（Picea asperata Mast.）天然群体的遗传变异
Seasonal variation of C/N ratio in‘Yu Her Pu' litchi trees(Litchi Chinensis Sonn.)
‘玉荷包'荔枝树体碳氮比之季节性变化
Esterase Isozyme Analysis of Bud Mutation QT01 from Peach
桃树QT01芽变枝的酯酶(EST)同工酶分析
Rosa sterilis S.D.Shi var. leioclada M.T.An,Y.Z.Cheng et M.Zhong,A New Variety of Rosa L.(Rosaceae) from Guizhou,China
贵州蔷薇属一新变种——光枝无子刺梨
Study on the Changes of Enzyme Activities of SOD and POD in the Dormant Branches of Different Sweet Cherry Varieties
甜樱桃休眠期枝条SOD·POD酶活性变化研究
The Characteristics of Rooting and Change of Oxidases in Different Portions of Softwood Cuttings of Hybird Hazelnut
杂交榛不同枝段绿枝扦插生根特性及相关氧化酶活性变化
densely branched Eurasian plant; foliage turns purple-red in autumn.
枝杈密布的欧亚树种；在秋天树叶变成紫红色。
Flowers on variegated branches yield offspring that have variegated foliage.
有斑驳的枝条上的花，产生有变异叶片的后代。
Study on A New Type of Anti-browning Agent in Frozen Preservation of Litchi Fruits
一种新型的速冻荔枝果皮抗褐变剂的研究
Progress in Research of Skin Browning Mechanism and Preserving Techniques of Litchi Fruit
荔枝果皮褐变机理与保鲜技术研究进展