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The wood structures of Lauraceae were characterized by most diffuse porous; most pores solitary, less multiple and cluster pores; simple and scalariform perforation with few bars; most solitary pore; alternate intervessel pitting; most of rays multiseriate, less uniseriate; all of rays heterogeneous, mostly heterogeneous Ⅲ and Ⅱ type rays; most of axial parenchyma paratracheal type, less banded or marginal type; oil cell and mucilage cell in axial parenchyma cell or ray cell; mostly fiber tracheid and libriform fiber, less septate fiber.

结果表明:除檫木外,其它木材的管孔分布均为散孔材,具较高的单孔率;导管分子穿孔板兼有单穿孔和梯状穿孔2种或者仅具有单穿孔;导管间纹孔式为互列;导管-射线间纹孔式类型丰富,主要为刻痕状和大圆状。木射线有单列和多列射线2种类型,单列射线稀少、短,多列射线数量多;射线组织主要为异形Ⅲ和异形Ⅱ;轴向薄壁组织以傍管状为主,少数有带状或轮界状。油细胞和粘液细胞普遍存在于射线薄壁细胞或轴向薄壁细胞中。木纤维由韧性纤维和纤维管胞组成,部分树种具分隔纤维。

This approach is base on the following idea:under not effect to the deformation of rectangular pipe,to change right angle to obtuse angle which is variant as some regular,make plain-barreled roll pass receive vertical roll shape pipe blank,and then let pipe blank entering into vertical roll pass.With continuous deformation, the difference between diagonal line of rhombus pass will be reduced to zero,finally changed into a square.

该方法的基本思路是:在不影响方矩形管变形的前提下,通过将孔型顶角由直角改为按一定规律变化的钝角,让呈卧菱形状的平辊孔型接纳呈立菱形状的管坯,接着让卧菱形状的管坯进入立菱形状的立辊孔型,随着变形的继续,逐渐缩小菱形孔型对角线之差直至为零,成为正方形。

The tracheary elements in secondary xylems of Actaea asiatica root and rhizomes were observered with a scanning electron microscope and found to contain abundant types, which mainly included tracheids, tracheid-like vessels, fibriform vessels, and typical vessels. Of these types, the tracheids, tracheid-like vessels, fibriform vessels were first found. Scalariform perforation plates, reticulate perforation plates, mixed perforation plates and simple perforation plates were observed in the typical vessels and the reticulate perforation plates ,mixed perforation plates were first founded the lateral-wall perforation plates, multiple end walls and pit membrane vestige were also observed in the tracheary elements.

利用扫描电子显微镜对毛茛科类叶升麻根和根状茎次生木质部中的管状分子进行观察,发现其管状分子类型丰富,主要有:管胞、管胞状导管、纤维导管和典型的导管分子,其中管胞、管胞状导管和纤维导管为在该类群中首次报道;在导管分子中,存在着梯状穿孔板、网状穿孔板、混合型穿孔板和单穿孔板,其中网状穿孔板和混合型穿孔板为在该类群中的首次报道;对其导管分子上的侧壁穿孔板、多穿孔板和纹孔膜残余也进行了描述。

In small intestine, AKP activity was mainly distributed over four areas of epithelial cells: cytomembrane, cytoplasm, microvillus and the carbohydrate-riched cell coat. In liver, it was mainly located in canaliculi. In kidney, it mainly existed in such zones as brush border and memebrane of epithelial cells of proximal tubule, and cracks between kinds of tubules.

AKP活性在小肠主要分布在小肠绒毛上皮细胞的细胞膜、细胞浆、微绒毛和微绒毛表面的糖衣上,在肝主要分布在胆小管,在肾主要分布在皮质肾小管,尤以近曲小管的刷状缘、近曲小管上皮细胞膜和各种管状结构之间的腔隙内分布较多。

This invention exposed the method of producing high performance cannular sapphire. It uses once-fashioning wetting EFG technology. It draws the cannular sapphire with required inner diameter and outer diameter and length from melt. Firstly, the size and specification of cannular sapphire need to be determined, then according to it to produce the matching cannular die. Then selecting sapphire particleboard from flame fusion method as raw material, and secelting the good seeding grew in (0001) direction by Czochralski method to grow cannular sapphire. The transverse temperature difference is within 2DEG C, the lognitudinal temperature grads within 10mm of die end face is 3-4DEG C, the growth speed is 30-40mm/h.

本发明公开了一种生长高性能管状蓝宝石的方法,采用一次成型的润湿导模法技术,直接从熔体中拉制所需内、外径尺寸和长度的管状蓝宝石,其特征是,首先确定管状蓝宝石的规格尺寸,根据上述规格尺寸制作相匹配的长管模具,然后,选用高纯度焰熔法蓝宝石碎料作为原料,选用提拉法生长的(0001)方向的优质籽晶,进行管状蓝宝石的生长,横向温差在2℃以内,纵向温度梯度在距模具端面10mm内为3-4℃,生长速率为30-40mm/h。

Perianth usually with 1 petaloid whorl (in Saruma with 2 whorls: outer one sepaloid, inner one petaloid), mostly connate into distinct tube, cylindric to campanulate or subglobose; limb rotate, urceolate, cylindric, or ligulate, 1-3-lobed; lobes valvate.

花被通常形成管状一轮(在马蹄香属里有花被2轮:外部一个萼片状,内部一个花瓣状),大部分合生成显著的管,圆筒状钟形的或近球形;花被管螺旋状,瓶形,圆筒状,或者舌状,1-3 分裂;裂片镊合状排列。

The Lithostegia Ching was considered as a member of Peranemaceae for a long time, according to the research,we found that it has the typical scalariform perforation plates,no associated or crossed phenomena,and some region have intact plate,no dimorphic phenomena,no weblike or threadlike remnants,these suggest that The Lithostegia Ching is in a primal evolutional position.

与传统观点不同,我们认为穿孔板仅存在于端壁的管状分子为导管分子,而端壁和侧壁形态、结构相似,有或无穿孔板的管状分子为管胞,蕨类植物中的管状分子主要为管胞。

Results: The angle that adjusting the reference line on the transverse plane is 32. 85°±6.76°, on the coronal plane is 14.15°±9.02°. The facial canal appears "ㄟ" on double oblique imaging geniculate ganglion, tympanic segment, post lap segment, mastoid segment were showed clearly. The achievement ratio is 100%. The segment displaying on double oblique imaging is more than transverse plane, coronal plane and sagittal plane.

结果:面神经管双斜位图像需要在横断位参考图像上旋转参考线的角度为32.85°±6.76°,在冠状位参考图像上旋转参考线的角度为14.15°±9.02°;在面神经管双斜位图像上,面神经管表现为&ㄟ&形,由前向后同时显示出膝状神经节、鼓室段、后膝部和乳突段;面神经管双斜位成像成功率为100%,面神经管行程的显示程度大于横断位、冠状位和矢状位。

Calyx tube tubular or funnelform-tubular, 5-7 mm; lobes ovate-triangular, 2.5-3 mm, inside sparsely white stellate-scaly, apex acute.

萼筒管状或漏斗状管状,5-7毫米;裂片卵形三角形,2.5-3毫米,内部疏生白色的星状鳞片,先端锐尖。

The tubing fabric ,the anti-seepage film and the resin and the composite technology are introduced,and the different application performance of the tubing plain weave,tubing weft pile weave and tubing warp knitting is analyzed.

阐述了管状织物、防渗膜及树脂材料的选择及其复合工艺,分析了管状平纹织物、管状纬起绒织物和管状经编针织物的不同应用性能,也对管状纺织复合材料进行了物理性能与耐化学腐蚀性能测试。

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I didn't watch TV last night, because it .

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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

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