气孔

After th thermal treatment at 2050,the amount of the free carbon and pore decreased .Also .another cause for the unfully conversion of C into SiC was the gas pressure .larger than the capillary force.

含残留C、气孔相的材料进行高温(2050℃)热处理后，材料中残留C、气孔相的含量大大减少。

It was possible that the direct transport of JA from unwounded tissue to wounded site could account for the increase of JA after leaf wounding.

用免疫荧光显微镜技术和免疫胶体金电镜技术证明JA在蚕豆叶片下表皮和气孔保卫细胞上是普遍存在的，它主要分布在保卫细胞的叶绿体、细胞核和细胞壁上；叶片的局部灼伤可提高JA在质外体和气孔保卫细胞中水平。

The focus of this dissertation work is to investigate possible involvement and signal transduction mechanisms of cAMP in regulation of Vicia stomatal movements.

论文的第一部分，从蚕豆叶片表皮组织水平和气孔保卫细胞原生质体K〓通道水平确定cAMP参与了ABA或Ca〓对气孔运动的调节。

The comparative research results showed that:(1)Thediurnal variation of the net photosynthetic rates in the aquatic leaves was a "double-peak", with an various "midday-decline", the time of the peak value appeared at about 10:00 A.M. and 13:00 P.M., while that in the xeric leaves was showed with invarious peak value and "midday-decline"; The diurnalvariation of transpiration ratesof both aquatic and xeric leaves appeared as a single-peak, the appearance time of peak value of the latter was earlier than the former and gradually decreased in the afternoon; The stomatal conductances appearance time of both of them were close to that of photosynthesisrate ,reached to the maximum in the morning and then gradually decreased: Diurnal variation of intercellular CO2 concentrationshows that: both aquatic and xeric leaves increased at first, and then exhibit a tendency of ascending within narrow range.(2) The net photosynthetic rates, photosyntheticallyactive radiation, stomatal conductances and transpiration ratesof both two kinds of leaves showed positive correlation, The correlation degree among them was prominent, there was significant negative correlation between The net photosynthetic rates and intercellular CO2 concentration.

研究结果表明：(1)水生叶片净光合速率的日变化曲线呈双峰型，出现明显的&午休&现象，峰值出现在10：00左右和13：00左右，但旱生叶片表现出的峰型和&午休&现象不明显；两种叶片的蒸腾速率日变化曲线表现为明显的单峰型，旱生叶峰值出现时间早于水生叶，中午过后逐渐下降；两种叶片气孔导度峰值出现时间和光合速率相近，均表现为上午升高至最高，随后逐渐下降的趋势；两种叶片胞间二氧化碳浓度日变化表现为：整体上先下降，然后有一上升趋势：(2)两种叶片的光合速率与光合有效辐射、气孔导度、蒸腾速率呈正相关，全部达到显著水平；光合速率与胞间CO2浓度显著负相关。

Main conclusions are as follows:(1) changes of leaf morphological and anatomical structures with tree height:25 researched tree species exhibited xeromorphic structures at tree top,that is,toward tree top,leaves were with 1 increased cuticle thickness;2 developed palisade tissue and even double-palisade structure;3 densely arranged tissue cells;4 smaller cells;5 thicker epidermis,smaller and denser stomata;6 smaller and thicker leaf,great LMA value.

本文主要得出以下结论：(1)叶片结构随树高的变化：研究的25种树种表现为越往树顶处：1角质层越厚；2栅栏组织越发达，全栅特征越明显；3叶组织细胞排列越紧密；4叶肉细胞越小；5表皮层越厚，气孔越小而密、单叶的气孔总面积越小；6叶片越小而厚，LMA越大。

According to the correlation analysis, the photosynthesizes rate had the highly significant correlation with transpiration rate and stomata conductivity and had significant correlation with intercellular CO2 concentration. The transpiration rate had highly significant correlation with stomata conductivity and photosynthesizes rate.

相关分析发现，光合速率与气孔导度、蒸腾速率呈极显著相关，与胞间CO2 浓度呈一定的相关性；蒸腾速率与气孔导度、光合速率呈极显著相关。

Pluralities of air vents are separately disposed at the relative position of the door panel and the control panel and pluralities of exhaust ports are still disposed on one side of the door panel.

本发明提供一种热风对流烧烤微波炉，包括有炉门门板及控制板，在所述炉门门板及控制板的相对部位上分别设有多个通气孔，在所述炉门门板的一侧还设有多个排气孔。

"We provide dummy vents, so no one knows what vents to go into," Rigdon said.

& &我们提供了封闭的排气孔，所以没有人知道排气孔的出口，Rigdon说。

It shows that the average thickness of the surface layer of crystals,the palisade and cone layer and the eggshell membrane are 20.8,220.8 and 62.5μm,respectively,which accounting for 6.8%,72.6% and 20.6% of the total thickness of the eggshell.There are many vesicular holes in palisade layer with an average diameter of(0.32±0.08)μm(n=30).The function of such holes may be of significant to air exchange.The shape of eggshell pore on the surface layer of crystals is round or ellipsis.The fracture surface of the pore is funnel-shaped.

结果表明：白冠长尾雉卵壳的表面晶体层、栅栏锥体层和壳膜层的厚度分别为20.8，220.8和62.5μm，分别占卵壳总厚度的6.8%，72.6%和20.6%；栅栏层有很多蜂窝小孔，其直径为(0.32±0.08)μm(n=30)；卵壳表面有许多圆形或椭圆形的气孔，可能与胚胎发育过程中的气体交换有关，气孔横断面呈细漏斗状，在其上半部有颗粒状填充物。

The reason of gas-hole defects occured in steel casting for molding eroduction line was analyzed.

结合多年的生产实践，分析了湿型砂水平造型生产线上铸钢件产生气孔的原因，介绍了预防铸钢件气孔的措施。

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！