种差异

Through the results of the true reflectance, the quantum efficiency of fluorescent dyes has been studied.

比较了两种不同的荧光染料光学模型的差异，并比较了两种荧光染料模型求解出的荧光量子效率的值。

In addition, serum-free culture would not affect the passage capacity and differentiation potential of rhesus monkey ES cells.

上述结果显示，单一的添加一种生长因子可提高细胞特异分化的比例，胚胎干细胞的分化和细胞凋亡的表现形式可能存在种间差异。

Methods8 species of its fruit were observed under light microscope and scanning electron microscope, and most of them were examined for the first time.resultsthe shapes of fruit are usually different from each other;there are obvious differences in color;the types of ornamentation of fruit coat are mainly similar to ruga and washboard.

方法对菊属8种植物的果实进行了光学显微镜与扫描电子显微镜下的形态特征观察研究，其电镜资料为首次报道。结果果实形态多为椭圆形、卵形和矩圆形；颜色为灰褐色至黑色；表面纹饰以皱褶状和搓板状为主。在大小、表面纹饰等方面表现出明显的种间差异。

The results showed: the variance analysis of colour parameters among different species eucalypt wood are significant and the color index in heartwood is higher than that in sapwood.

摘 要：以五种桉树人工林木材为研究材料，用测色仪和氙衰减仪测试了五种桉树木材的颜色和耐光性，比较了这些桉树木材的颜色参数，结果表明：不同种类桉树木材材色参数之间差异显著，桉木心材部分的色品指数和色饱和度高于边材；桉木的耐光性随氙灯照射时间的增加而逐渐变差。

Science , 290, 521– 523.Daehler CC (1998) Variation in self-fertility and the reproductive advantage of self-fertility for an invading plant.

本研究通过室内实验控制入侵种和本地种生长在相同的环境条件下，排除了生长环境差异对植物个体生长的影响。

The results on the fitness of F1 showed that both of those two kinds of F1 had good germination and growth rate, which was not significantly different from that of wild B. juncea. However the seed setting of F1 with glufosinate-resistant gene and glyphosate-resistant gene were only 0.50 and 0.61 per silique, which decreased significantly compared to that of self-pollination of wild B.

对F1的适合度研究表明，两种F1种子萌发率及营养生长情况和野芥菜没有明显差异，但结实明显下降，携带抗草丁膦基因的F1和携带抗草甘膦基因的F1每个角果饱满种子粒数分别是0.50和0.61。

The relationships of the self-sealing pressure of two types of direct acting gas regulators to its structural characteristics and inlet pressure are analyzed.

分析了两种直接作用式燃气调压器的自封压力与其结构特性和进口压力的关系，探讨了进口压力变化对两种调压器自封压力变化影响的差异。

The morphology of sensillumtrichodea does not differ between sexes and species,but the number anddensity differ significantly.The ultrastructure of two types of antennal sensillum,sensillumtrichodea and sensillum chaetica was investigated in males of Ancylissativa Liu with transmission electron microscope.

在七种类型的触角感器中，毛形感器在数量和分布上占主导地位，雄蛾触角上毛形感器的数量和密度比雌蛾触角上多而密，不同种类之间毛形感器的数量、分布密度也不同；其它六种触角感器虽然在同种的雌雄之间和不同种类之间也存在一定的差异，但不如毛形感器显著。

As an important chemical analysis method, sequential extraction is the main link in analysis of heavy metals in soils, but adopting single extraction procedure for different types of soil and different forms of heavy metals makes it very difficult to compare the results.

连续提取法作为一种重要的化学分析方法，是土壤中重金属元素形态分析的主要环节，但同一种提取法对于不同的土壤类型及同类土壤中不同重金属形态的提取效果差异很大。

In this paper,the behavioral,physiological, ecological adaption mechanism of H.armigera and H.assulta to their common host plant tobacco were studied comparatively,and the main results were summarized as follows:Electroantennogram response of adult to tobacco volatiles:(1) H.armigera and H.assulta elicited similar EAG responses to the tested 20 tobacco volatiles;both of them elicited significantly more sensitive to green leaf volatiles,aliphatic and aromatic compounds, than to monoterpene,sesquiterpene,heterocyclic compounds under lower concentration; while the similar EAG responses under higher concentration were detected,but most of them were not significantly different with each other.

本文从行为、生理和生态适应三个方面，对棉铃虫和烟夜蛾与烟草间的互作进行了比较研究，主要结果如下：成虫对烟草挥发物的EAG反应：(1)两种夜蛾对测试的20种烟草挥发物均可产生EAG反应；低浓度下对绿叶气味、脂肪族、芳香族化合物的EAG反应显著高于单萜类、倍半萜类和杂环化合物；高浓度下的EAG反应也表现出相似的总体反应趋势，但多数反应值间的差异未达显著水平。

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！