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Results showed that all leaves consisted of epidermis, chlorenchyma, aquiferous tissue and vascular bundles. The leaves had the xeromorphic characteristics, including thickened epidermal cell wall, thickened cuticle, sunken stomata and well_developed aquiferous tissue. With the exception of this, there were remarkable differences in leaf structure among the six species.

结果表明,6种芦荟叶均由表皮、光合组织、储水组织和维管束组成,都表现出明显的旱生植物肉质叶的结构特征,表皮由一层扁平的细胞组成,其外壁加厚,并覆盖着厚的角质膜,气孔器凹陷,储水组织发达。

The thylakoid of chloroplast was lost, the chloroplast was shrinked and composed into several discontinuous parts, which suggest that the function of chloroplast was destroyed;(2) the cell wall was thickened clearly, plasmolysis was found in most of Platymanas subcordiformis cells;(3) the number of mitochondria increased, some cristae of mitochondria were dissolved;(4) the number of vacuolar increased and the size of vacuolar was not uniform, the shape was deformed;(5) the nucleus was deformed and part of the nucleus membrane was dissolved;(6) Golgi dicytosomes accompanied with a loose arrangement of cisternae and the peripheral tips of the dictyosome cisternae are not especially swollen.

叶绿体内的类囊体缺失,叶绿体皱缩,叶绿体被分离成几个不连续的部分,说明叶绿体功能被破坏;(2)细胞壁明显增厚,细胞壁与细胞膜存在质壁分离现象;(3)线粒体数目增多,部分内嵴遭破坏;(4)液泡数目增多,大小不等,形状不规则;(5)细胞核变形,核膜部分解体;(6)UV-B处理的高尔基体有一个排列松弛的潴泡,潴泡的外围顶端并没有特别膨大。

Film or paper surface dirty, and wrapped it into the dust or clear plastic mulch films after the crease or relaxation phenomena, film hemming switched to a new membrane drying temperature is too high, adhesive surface crust adjust oven temperature, clear crusts partⅱ thermotolerance cohesion and not enough use better glue wrinkle of polymer-coated film transfer after the roll is not the proper balance of films at both ends are inconsistent or wave; adjustment layer of polymer-coated machine too thick, solvent evaporation incomplete, viscosity, pressure drum extrusion, paper (Business card printing and membership card making products) and films between slide to adjust the film covering technology electrothermic roll and rubber roller ends is not plain, pressure is inconsistent, ranging from the adjustment of the linear speed of the machine after the temperature inside the plastic mulch film covering the subject in yellow glue resin particularly resin or additives not resistant to ageing, in the light, heat, under the influence of ultraviolet radiation, chemical change, build the pigments should be switched to a new glue

薄膜或纸张表面不干净,裹入灰尘或杂质清除后再行覆膜薄膜有折皱或松驰现象,薄膜卷边换用新膜干燥温度过高,粘合剂表面结皮调整烘道温度,清除结皮胶的粘接力和耐热性不够换用更好的胶水覆膜后起皱薄膜传送辊是否不平衡;薄膜两端松紧不一致或波浪边;调整覆膜机器胶层过厚,溶剂蒸发不彻底,影响了粘度,受压力滚筒挤压,纸张与薄膜之间产生滑动调整覆膜工艺电热辊与橡胶辊两端不平、压力不一致、线速度不等调整覆膜机器覆膜后易变黄胶水中的主体树脂特别是一些增粘树脂或助剂不耐老化,在光、热、紫外线的影响下,发生化学变化,生成有色物质应换用新胶水

The reasons: first, the ink dry slowly tends to be a result of the slow evaporation rate of water, usually as a result of viscidity exorbitance or monochamus version xuetie deep and too thick membrane or for non-absorbent plastic, aluminum foil, and so on do not absorb ink, the other is for full wind conditions or no drying equipment condition or drying (including infrared small magnetic dry power) caused by the temperature low and so on.

原因:一是油墨干燥慢往往是因水的蒸发速率慢引起的,通常也会因粘度过高或版穴深而墨膜过厚或因非吸收性塑料,铝箔等不吸收油墨导致的,二是因完全无风状态下或无烘干设备条件或烘干(包括红外磁波干燥功率小)温度低造成的等等。

It was found that the resistivity of the TiO2, thin films deposited on Ti and Ti substrates increased non-linearly with the increase of the thickness of the films and varied in the range from conductor or semiconductor to nonconductor, respectively. The conducting layer thickness of the films deposited on different substarte materials is different and the films deposited on glass are nonconductors.

结果表明,沈积在Ti和Si基底上的TiO2薄膜的电阻率随著膜厚的增加而非线性增大,分别经历了导体、半导体到绝缘体或半导体到绝缘体的电阻率范围的变化过程, TiO2薄膜导电层厚度也不相同,沈积在玻璃表面TiO2薄膜为绝缘体。

The present invention adopts polyvinyl perchloride and organosilicon modified acrylic resin as main filming material and adds cyanuramide phosphate and expanding graphite into common polytriammonium phasphate as fireproof assistant to constitute foaming material. The present invention has greatly raised foaming rate and the foamed layer has thickness of 30-50 times the original coating thickness and fireproof limit up to 90 min.

本发明采用高氯化聚乙烯和自行合成的有机硅改性丙烯酸酯树脂为主要成膜物质,并在通常所用的聚磷酸铵类防火助剂的基础上,加入三聚氰胺磷酸盐和可发性膨胀石墨作为发泡材料组成,大大提高了涂层的发泡率,发泡层厚度可达原涂层厚的30~50倍,耐火极限可达90min(涂层厚度2mm)。

The contrast experimental analyses on the spray voltage, pinhead size and other influential factors are carried out.

在初步试验的基础上,利用正交试验的方法考察了海藻酸钠,羧甲基纤维素钠以及氯化钙的浓度对成囊过程中微胶囊膜厚,粒径等的影响。

The optimal carrier gas velocity of prepared SE-30 series capillary chromatographic columns was studied and used to separate isomeric compounds. The efficiency of SE-30 capillary chromatographic columns has been studied with different diameters, film thicknesses and oven temperatures, using n-do-decane, phenol, aminobenzene, and butyl acetate as test samples.

研究自制的SE-30系列毛细管气相色谱柱的载气最佳线速度,并应用于同分异构体的色谱分离分别用十二烷、苯酚、苯胺、醋酸丁酯作试祥在不同载气线速条件下对不同口径、不同膜厚、不同柱温的SE-30毛细管色谱柱的柱效进行考察,并在最佳线速度条件下分离异戊醇、硝基氯苯、硝基甲苯及二乙苯同分异构体体系。

The immature stage pointed to the development of SE before vacuole membrane was ruptured.In this stage,the cell radial expanding,cell wall incrassation,sieve element plastid and P-protein producing of SE occurred.

未成熟期是指筛管液泡膜破裂之前筛管的发育阶段,在这一时期内出现了细胞的径向扩展、壁的增厚以及筛管质体和P-蛋白质的产生。

Films with various film thicknesses from 20 nm to 180 nm annealed at 550℃ for one hour, no obvious changes in structural and magnetic properties due to the variation of film thickness were detected.

在550℃下热处理1小时后的薄膜,随着膜厚从180nm减小到20nm时,薄膜的磁性和微结构均没有表现出明显的变化

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