薄壁

The results showed that compared with soil culture, the root cap was not obvious with less amyloplast and polysaccharose substance under water culture. The root epidermis under water culture was thinner than that of soil culture, with little root hair or not, in which cortex parenchyma tissue developed with big cell, solution proliferative aerenchyma in intercellular space, and thin cell wall. However, the root cap under soil culture was big, with strong PAS reaction and no aerenchyma tissue.

结果表明：水培后根冠不明显，淀粉体较少，多糖类物质较少而土培根根冠体积较大，淀粉体较多，多糖类物质多，土培根PAS反应强烈；水培根表皮厚度比土培根小，水培根根毛少或退化消失；水培根皮层薄壁组织发达，细胞大型，壁薄，细胞间隙中含有溶生性通气组织，土培根皮层未见通气组织。

Steel Truss.It is the load-bearing part in the roof structure. It can be triangle, trapezoid, shuttle and three-hinged. Angle bar steel, thin steel sheet, round bar and square bar can be used to manufacture it.

桁架：桁架是屋盖结构中主要承重构件，桁架的形式有三角形，梯形，梭形，三铰捞等，可采用角钢薄壁型钢，园管，方管等来制作。

That is to say, when the inclination angle of the localized deformed band is predicted to be , the localized deformed band cannot be observed in experiments.

即薄壁圆筒在扭转作用下局部变形带的倾斜角度为九十度时，不可能观察到局部变形带。

The formula can be used in approximate calculation of instable critical load of high pier in the design and construction.

本文利用能量原理的Ritz法，在对截面惯性矩变化作线性假定后，推导出变截面空心薄壁高墩失稳临界荷载近似计算公式，可用于设计施工中对高墩失稳临界荷载的近似计算。1中心压杆稳定理论及能量原理中心压杆的失稳问题是稳定问题中的一个最基本的问题。

The experimental investigation on vibration characteristics of thin cylindrical shell with axial symmetry has been performed.

本文对轴对称薄壁壳结构的振动特性进行了试验研究。

Cold formed steel ...小型钢琴baby grand

冷弯型钢是一种经济的截面轻型薄壁钢材，。。。

Tylose A bladderlike ingrowth from a parenchyma cell into an adjacent tracheid or vessel through a paired pit.

侵填体：薄壁细胞向内生长的泡状物通过纹孔伸入相邻的管胞或导管形成的结构。

However, bleb thinning and bleb - related infection after MMC surgery, and additional problem can be anticipated with longer follow-up.

然而，MMC术后薄壁滤过泡和滤过泡相关的感染以及其他问题尚需长期随访。

Bryophyte spores have three types of aperture, the trilete is original one, the monolete is the evolutionary character and the katalept is mostly common one.

苔藓孢子的萌发孔有3种类型：三裂缝为原始类型，单裂缝是进化性状，近极薄壁区是最常见的。

It was observed that the influence of bud and its position on the healing process of grafting unions using hardwood sectioning method, and found that:(1) bud of a scion and its position to the graft unions have no influence on callusing formation of the isolation layers, and the early differentiation of cambia;(2) a scion bud closer to the grafting union would promote the formation of more compacted callus cells and the earlier formation of callus bridges;(3) conduit differentiation in grafting unions of lower-bud scions was later than that of other treatments.

利用滑动切片法对芽子有无及芽位对嫁接愈合过程的影响进行了观察，发现：(1)接芽有无及芽位对隔离层及愈伤组织形成和形成层的早期分化没有影响；(2)芽或去芽的芽位距接口近，可以促进愈伤组织的紧密连接，即愈伤组织桥的形成；(3)低位芽枝嫁接体中导管分化较晚，而其它处理导管的分化几乎是同时发生的，而且导管首先出现于愈伤组织薄壁细胞中。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐