石细胞

The structures of the two-year-old tap roots are similar to that of the one-year-old ones, while the periderm thickness is increased. In the secondary xylems of the two-year-old roots, the woody fibers are distributed in groups and the interxylary phellem appears. The vascular rays are multiseriate. Phellem cells surround a sclereid form the phellem cycle in the phloem nearby the periderm.

二年生黄芩主根的主要结构与一年生的基本相同，其不同之处为：二年生主根的周皮增厚，次生木质部中木纤维成群分布，出现木间木栓；维管射线为多列且明显；在近周皮的韧皮部内出现包围石细胞的木栓环组织。

In the transverse cross of the stem,the pericycle composed of stone cells was observed.

茎的横切面的显微特征中，维管柱鞘由一列石细胞组成。

Considering other differences that in leaves of Podocarpus there are three resin ducts under vascular bundle of midrib, mesophyll cells are differentiated into palisade tissue and sponge tissue; in leaves of Nageia, there is only one resin duct under vascular bundle in each vein and no obvious differentiation in mesophyll cells, palisade tissue can be found on both sides, and sclereids can also be found in mesophyll tissue.

结合罗汉松属植物主脉维管束下面有3个树脂道，叶肉分化为栅栏组织和海绵组织，而竹柏属植物每个叶脉维管束下面有1个树脂道，叶肉分化不明显，两面都有栅栏组织，叶肉中还具有大量石细胞等特征，认为罗汉松属和竹柏属在叶脉、叶形态和结构方面存在明显差异，2个属分开是比较合理的。

The results were as follows: Persimmon fruit consists of epidermis, sclereid layer and pulp tissues from outside to inside in the fruit transverse section.

结果表明：果实横切面从外到内是表皮层、石细胞层、中果皮及内果皮组成的果肉组织。

Results: Cortex Phellodendri by the microscopic characteristics of the stone cell number and Berberine content; both significantly related to each other.

结果：得到了黄柏药材的石细胞显微特征数及盐酸小檗碱含量；二者有显著的相关性。

The diameter, density and content of stone cell are the best in the treatment of IAA 100mg·L-1 , and it could increase the weight of single fruit, but had no distinct influence to fruit quality.

IAA100mg·L-1的处理的果实石细胞团直径、密度和含量最小，IAA可以增加果实单果重，提高可溶性固形物，但对果实品质影响不大。

The diameter, density and content of stone cell are high, and the titration acid contents are high and the total soluble solid contents are low in rough pear.

粗皮果的石细胞团直径、密度和含量较高，硬度大，可滴定酸含量高，可溶性固形物低。

The content of stone cell was decreased in the treatment of ZnCl2 spraying, and it had no distinct influence on diameter and density to spray ZnCl2.The content of total soluble solid was increased, meanwhile, the titration acid contents were decreased by this way.

喷施氯化锌可以降低石细胞团含量，对直径和密度影响不大，提高了可溶性固形物，降低了核心比和可滴定酸含量。

After spraying 3 kinds of growth regulators PBO,PP333 and GA_3 after full bloom,the concentration of which was 50 mg/L,the content of soluble sugar,titratable acid,soluble solid substance,vitamin C,and flesh hardness,fruit shape index,stone cell content were analyzed,and the content of IAA,GA_3,ZR and ABA in young fruit was determined by means of ELISA method to probe the dynamic change of the endogenous hormones during the fruit development.

在此基础上，于盛花期喷施浓度均为50 mg/L的生长调节剂PBO、PP333、GA_3，对各处理果实可溶性糖、可滴定酸、可溶性固形物含量及果肉硬度、果形指数和果实石细胞含量进行分析；采用酶联免疫吸附法测定了幼果生长发育过程中IAA、GA_3、ZR和ABA含量的动态变化。

Bamboo variation ofmicrodensity of all age-degree and all height bamboo from bamboo green tobamboo yellow as follows:The downtrend ladder of microdensity the firststage from bamboo green to bamboo yellow is relatively large,normally at theplace 0.35 from bamboo hull(the thickness of from bamboo hull to bambooyellow is 1)micro-density downtrend ladder begin to get smaller,variancerange of microdensity is smaller.When reaching near bamboo yellow area,microdensity reaches its minimum value,and when reaching bamboo yellowsection density increase rapidly,the minimum density of bamboo is only 50% orless of maximum density.Bamboo yellow is comprised of stone cells whichhave thick cell wall,so its density is high,normally 50% to 100% more thanminimum density.Bamboo yellow′s lay thickness is thin,normally the samethickness for all age-degree and all height bamboo,about 0.8mm.From 1 age-degree bamboo to 2 age-degree bamboo during growth,the increase of averagedensity is mainly in bamboo pulp section,from 3 age-degree bamboo to 4 age-degree bamboo,the decrease of average density is mainly decrease in the pulpsection.Same age,same height,the less the density ladder of bamboo radialthickness,the higher the mechanical strength.

所有年龄所有高度的竹材微密度从竹青到竹黄对材性变异规律如下：从竹青到竹黄开始下降梯度较大，一般到相对竹皮距离0.35左右处(整个竹壁厚度为1)，竹材微密度下降梯度减小，微密度的变化范围变小，到近竹黄处，微密度达最小值，而后到竹黄部位密度大幅上升，竹材最小密度一般只有最大密度的50％或更低，竹黄由厚壁的石细胞组成，所以密度较大，一般比最小密度增大约50％-100％，厚度较薄，不同年龄不同高度竹材的竹黄厚度相差无几，约在0.8mm左右；竹材从1度竹到2度竹生长过程中，平均密度的增长主要发生在竹肉部分，从3度竹到4度竹生长过程中，平均密度的下降主要发生在竹肉部分，同一年龄同一高度，竹壁厚径向的密度梯度越小，力学强度越高，随着年龄的增大，密度梯度越来越小(1度竹除外)，随着高度增加，密度梯度越来越大。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。