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The third, fine grains are found along the edge of the weld, which is different from the equiaxial dendritic. Its formation has a relationship with the effect of Li, Sc, Zr, Ti on the crystallization of molten pool.

3.2195铝锂合金焊缝边缘存在独特的细晶层组织，其形态与等轴树枝晶不同，这一特征组织的形成与合金元素Li、Sc、Zr和Ti对熔池结晶过程的作用规律有关。

This paper defines a strong security model for multi-recipient signcryption scheme in the random oracle model, which is semantically secure against adaptive chosen-ciphertext insider attack, existentially forgeable chosen-message attack and anonymous chosen-ciphertext insider attack. By analyzing, we point out that Li-Hu-Liu Multi-Recipient Signcryption Scheme is insecure against the adaptive and anonymous chosen-ciphertext insider attacks.

摘要在随机预言模型下定义了一个多接收者签密方案的强安全性模型，该模型满足适应性选择密文内部攻击安全性、选择消息抗存在性伪造和密文匿名安全性；通过分析指出， Li、Hu和Liu等人提出的多接收者签密方案，不具有适应性选择密文内部攻击安全性和密文匿名性，并给出所定义强安全性模型中的攻击方法；随后提出改进方案，该方案在强安全模型中证明是安全的。

Exogenic elements enriched in low-grade section,such as Li and Ti;while endogenic elements,represented by Sr and Ba in low concentrations.

以Li、Ti为代表的外源元素，贫矿段的含量高于富矿段；而Sr、Ba等湖盆内化学沉积元素，富矿段的含量高于贫矿。

Objective: To study the photosynthetic characteristics of leaves for improving the quantity and quality of Fagopyrum cymosum Method: The light-response and diurnal photosynthesis course of leaves at the booting stages of F.cymosum species GuizhouⅠand JiangsuⅡ,were analyzed by LI-6400 system under natural condition.

中文摘要：目的：研究金荞麦叶片的光合特性，为提高金荞麦的产量和质量提供依据。方法：自然条件下利用LI-6400型便携式光合系统测定金荞麦品种贵州Ⅰ号和江苏Ⅱ号孕蕾期叶片的光响应及光合日变化进程。

O methoxy phenyl lithium reacts with 6,6 dimethyl fulvene to give ligand lithium (Cp ′Li,Cp ′ represents cyclopentadienyl with substituents).

邻甲氧基苯基锂和 6，6-二甲基富烯(或 6，6-二乙基富烯)反应得配体锂盐，Cp′ Li直接和 Cp Zr Cl3· DME反应生成 2个新的锆络合物 Cp′ Cp Zr Cl2 。

Diurnal change of net photosynthetic rate and light response, CO2 response of two Guzmania varieties 'Guzmania 'Rana'' and 'Guzmania Denise' were studied using LI-6400 Portable Photosynthesis System.

利用LI-6400光合作用仪研究了两个观赏凤梨品种红星（Guzmania 'Rana'）和丹尼斯（Guzmania 'Denise'）叶片净光合速率的日变化规律及其光响应和CO2响应特性。

A genetic epidemiologic case-control study with 297 pedigrees (79 genealogies and 198 controls) was carried out to estimate the segregation ratio and hereditability (h2 ) of gastric cancer by the methods of Li-Mantel-Gart and Falconer.

通过遗传流行病学病例对照研究，对泰兴市297个家系(先证家系79个，对照家系198个)，应用Li-Manel和Falconer方法进行了分离比及遗传度的估算。

A genetic epidemiologic case-control study including 407 pedigrees(249 cabes and 158 controls)was car-ried out to estimate the segregation ratio and the hereditability(h￣2)of esophageal cancer by using the methodof Li-Mantel-Gart and Falconer,respectively,and to compare the genetic epidemiologic features from theother cancers.

本文通过遗传流行病学病例对照研究，对淮安407个家系（249个先证病例，158个对照），应用Li－Mantel－Gart和Falconer方法分别进行了分离比、遗传度估算及比较流行病学研究。

The object in this study is intercrystalline brine from a salt-lake in Qinghai (Mg/Li=60~70). Taking into account of comprehensive utilization and reducing cost, a practical and economical lithium-extracting technological method has been found, which is fit for industrial production.

本文以青海某盐湖晶间卤水(Mg/Li=60～70)为研究对象，从资源的综合利用、降低提锂成本等角度出发，提出了一条技术可行、经济合理、适合工业化生产的提锂工艺路线。

With LI-6400 portable photosynthetic system the net photosynthetic rates,transpiration rates and water use efficiencies of two ephemeral plants,Lappula semiglabra and Tetracrne quadricornis in the Desert Area of the Junggar Basin, were studied.

运用LI-6400便携式光合测定系统，研究了准噶尔盆地荒漠区2种典型短命植物——狭果鹤虱和四齿芥的净光合速率、蒸腾速率和水分利用效率特征。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。