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The results indicated that chromosome counting was the most reliable and precise method, however, it was cumbersome and required skilled cytological techniques; The chromocenter size, heterochromatin number, chroloplast number of guard cell and certain plant morphological characteristics are simple and practical methods for ploidydetermination but with some shortages.

结果表明：对体细胞染色体的直接计数法是最可靠的方法，但费时、难度大；叶片气孔大小与倍性无显著相关性；保卫细胞叶绿体数目、体细胞染色中心大小以及异染色质个数与黄瓜倍性密切相关，是简单、快速而有效的倍性鉴定方法；植株的形态学观察也能间接确定植株倍性，但鉴定时期偏晚，精确性较差。

Before we can encrypt, we need to know the size of the buffer required for the cipher text.

在我们可以加密，我们需要知道的密文所需的缓冲区大小。

For any given ciphertext, the corresponding plaintext can be found in less than 2^19 operations over a finite field of size 2^8 by linearization equation attack.

对于给定的合法密文，可以利用一阶线性化方程攻击方法在2^19个2^8域上的运算内找到了其相应的明文。

With the rapid development of our country"s transportation and the implementation of the state"s the policy of the Great Development of the Western Regions, a great many tunnels will be built in elevations areas or circumpolar areas in the Big West. Compared with traditional tunnels in the cold area, these tunnels will take large size and require higher technology. Moreover, the extreme climatic conditions are very unfavorable for these tunnels.

随着我国交通事业的快速发展，特别是西部大开发和振兴东北经济政策的进一步落实，在西部的高海拔和北部的高纬度寒冷地区将陆续有大量的隧道建成，与以往寒冷地区的隧道相比，这些隧道的规模会更大、技术要求更高，而气候条件却更加恶劣。

Seedlings occurred abundantly in gaps or open areas and the size class frequency distributions were often discontinuous, and the same general pattern occurred in all the investigated populations for juveniles and adults.

到2007年，六个居群健存的生殖植株数为584株，另外还有大量的幼苗和萌生枝。径级结构分析表明滇桐具有实生苗更新和萌生更新两种更新方式，从幼苗成长为幼树有障碍。

The results of experiments on a great deal of image sequences of closely packed particles indicate that, for closely packed aggregates particles, quite reasonable estimates of number of particles or average size often arise from the method based on the edge density.

通过对大量颗粒图像进行的实验，特别是岩石骨料图像序列的实验结果显示，对于紧凑型的石料颗粒，采用基于边缘密度的方法检测颗粒数量或者平均尺寸常常可以收到相当好的效果。

His clothe are so loose as if it is made for a man twice the size of him.

他的衣服很宽大，好像是为比他个子大一倍的人裁剪的。

It's been a long time for a club our size,he admitted.

"对我们这种级别的球队来说这个时间长了一些，"他承认。

In this paper, three kinds of hydroxyl component are prepared for two-component waterborne polyurethane paint, that is, acrylic dispersion, acrylic emulsion and silicone-modified acrylic emulsion. The influence of the composites of these dispersion and emulsions on polymerization process, viscosity, particle size and coagulum are investigated, infrared spectroscopy , inductance coupling plasma , transmission electron microscopy and thermogravimetric analysis are used to characterized their structure, composite, morphology and thermal stability, respectively.

本论文制备了三种用于水性双组分聚氨酯涂料的含羟基组分，即丙烯酸分散体、丙烯酸乳液和有机硅改性丙烯酸乳液，研究了这些分散体和乳液在制备过程中聚合物的羟值、酸值、玻璃化温度、乳化剂、反应温度等对聚合转化率、凝聚物含量、聚合物粘度和粒径的影响，用红外光谱、热重分析、透射电镜和感应偶合等离子技术表征了其结构、组成、形态和热稳定性。

While competitive the atmosphere was collegial and the college's size and atmosphere were perfect for me.

学院大小和学术氛围都很适合我。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。