种差异

By analyzing and comparing the above test results, the special demands for welding current and time and pressure in the spot welding of zinc-coated steels were put forward.

为了在需点焊加工的产品上推广使用镀锌钢板，并保证其焊接质量，本文对普通冷轧钢板、电镀锌钢板和两种不同锌层厚度的热镀锌钢板进行了一系列点焊工艺及力学性能试验，并通过对试验结果的数据处理和理论分析，找出了几种材料点焊工艺性能上的差异，得出了一套合适的点焊焊接规范范围。

The relevant spot welding parameters for every kind of zinc-coated steels were proposed.

为了在需点焊加工的产品上推广使用镀锌钢板，并保证其焊接质量，本文对普通冷轧钢板、电镀锌钢板和两种不同锌层厚度的热镀锌钢板进行了一系列点焊工艺及力学性能试验，并通过对试验结果的数据处理和理论分析，找出了几种材料点焊工艺性能上的差异，得出了一套合适的点焊焊接规范范围。

Together with the cited sequences of other species (cattle, zebu cattle and buffalo), the molecular phylogenetic tree was therefore built to probe phylogenetic relationship between Bovine subfamilies, Total 5 variation sites were examined and two types of mutation, transition and transversion, were observed, with the overage percentage of nucleotide variation of 1.66%. It demonstrated the poverty of polymorphism at exon 5 of GH gene of three bovine species. There was only one missense mutation out of 5 mutation sites which led to the shift between leu and val amino.

结果表明，在雷琼牛、巴州牦牛和巴州蒙古牛中共检测到5个变异位点，核苷酸取代方式仅有转换和颠换，核苷酸平均突变率仅为1.66%，说明这3个牛种GH基因外显子5多态性较为贫乏；5个变异位点中仅有1个为错义突变，导致亮氨酸和缬氨酸的转换，但该突变在牛种中分布有差异。

There are many differences between the heat transfer with two-fluid and the heat transfer with three-fluid separate type heat transfer units of heat pipe.

中文摘要：采用分离型热管换热组件实现三种流体之间的热交换与两种流体之间的热交换有许多差异。

The identification of tea plant resistance to tea brown blight The resistance of 13 tea plant cultivars to tea brown blight had the difference or remarkable difference. In general, the resistance of big leaf cultivars was relatively weaker, the resistance of middle leaf cultivars was relatively stronger.

茶树品种抗云纹叶枯病的鉴定 13 个茶树品种对茶云纹叶枯病的抗性存在显著差异，一般大叶种材料的抗性较弱，中叶种材料的抗性较强。

Result In control group, The tail moment in the four xenografts were significantly different (F=9.113, P＜0.01). The tail moment in the four xenografts exposed to irradiation (2Gy, 5Gy, 10Gy and 15Gy), reflected the descending tendency of radiosensitivity described below: lung adenocarcinoma＞neuroblastoma＞esophageal squamous carcinoma＞nasopharyngeal squamous carcinoma.

结果 未照射时4种人癌裸小鼠移植瘤的尾力矩有显著差异(F＝9.113，P＜0.01)。4种人癌裸小鼠移植瘤细胞在不同剂量(2Gy、5Gy、10Gy和15Gy)照射后，未做校正时的TM所反映放射敏感性由高到低的变化趋势依次为：肺腺癌＞神经母细胞瘤＞食管鳞癌＞鼻咽鳞癌。

Toxicities of methanol, propylene glycol and n, n-dimethylformamide were lower than the others when sea perch and Japanese flounder embryos were exposed to 6 cryoprotectents, respectively.

鲈鱼尾芽期胚胎在十种稀释液中分别处理后，DS1组的胚胎成活率最高(95％)，与海水对照组没有显著差异。鲈鱼和牙鲆胚胎单一抗冻剂的毒性实验结果表明，甲醇、1，2-丙二醇和二甲基甲酰胺的毒性低于其它三种抗冻剂的毒性。

Dijkstra algorithm and matrix iterative algorithm are important algorithms of the shortest route problem.In order to find which of the two algorithms is more efficient,the two algorithms were discussed,and their program flows were introduced.

Dijkstra算法和矩阵迭代算法都是最短路径问题的经典算法，为了研究这2种算法的计算效率，介绍了2种算法的基本思路和程序流程；通过对时间复杂度、结果和时间的关系指标进行多次计算，表现2者之间的效率差异。

Three new aldehydes and twelve new porphyrins have been synthesized and characterized by various spectroscopic techniques.

在参考文献的基础上，合成了三种新的醛以及12种变化非常有规律的新型卟啉并对其进行了相应表征描述，总结了其结构和性质差异的关系。

However, it is difficult to accurately evaluate the water budget and water use efficiency of alpine meadow because ther imbalance was prevalent in this study site the sum of sensible and latent fluxes estimated by eddy covariance technique (EC method is often less than the difference between the net radiation and the soil heat flux.

本研究于2005年和2006年夏季的7～8月，利用小型蒸渗仪、波文比与涡度相关技术三种方法对青藏高原高寒草甸生态系统昼间的蒸散量进行对比研究，定量分析三种方法所得结果的差异，并试图分析其影响因子，为利用和正确评价涡度相关技术测定该生态系统的碳水收支提供了理论依据。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！