圆的直径

According to the requirements in the design of engine, several simulation parameters were determined, such as the diameter of the distribution circle of cylinders, the central position and the decline angle of the wobble disk, the length ol the connecting rod.

根据发动机的设计要求，确定了气缸分布圆直径、摆盘中心与气缸的距离、摆盘的倾角、连杆的长度作为发动机虚拟设计及仿真的重点。

The observations reveal warm (320 K) dust in a structure 2.1 parsec thick and 3.4 parsec in diameter, surrounding a smaller hot structure.

观测显示，在NGC 1068中心的尘埃圆环面原来是一个比较热的（320 K）的致密结构，直径约几个光年，它阻断了我们的视线，使我们无法看到该星系最里面的活动区域。

The height of bulliform cell groups reached 0.18 of leaves thickness, which was another important quantitative characteristic to achieve function of bulliform cells.

泡状细胞的周长面积比仅占普通表皮细胞的0.723，是泡状细胞功能实现的重要数量特征；(2)以细胞面积、周长、等效圆直径、每平方公厘细胞数、周长面积比，可以建立小麦叶片泡状细胞Fisher's线形判别函数，判别正确率达99%；(3)泡状细胞组高占叶厚的比例达到了0.18，是泡状细胞功能实现的又一重要数量特征；(4)相关分析表明，泡状细胞组长、泡状细胞组高、泡状细胞组面积均与泡状细胞距离叶缘的位置呈极显著负相关。

Unlike most of the other desert plant species, which have small leaves so as to minimize moisture loss, this plant is unique in that its leaves are particularly large; each plant's rosette of one to four leaves reaches a total diameter of up to one meter. Prof. Simcha Lev-Yadun, Prof. Gidi Ne'eman and Prof. Gadi Katzir came across this unique plant growing in the desert while studying the field area with students of the Department of Science Education-Biology of the University of Haifa-Oranim, and noticed that its leaves are unusually large and covered with a waxy cuticle.

不同于其他大多数沙漠植物，利用小的叶片来减少水分的散失，这种植物的叶片特别的大，一株沙漠大黄可以有1到4片圆盘状的叶片，直径最多可达1m，海法大学的教授Simcha Lev-Yadun、Gidi Ne'eman和Gadi Katzir在带领学生在此地作调查的时候发现了这种植物，他们发现这种植物的叶子不寻常的大，并且覆盖了以层蜡质。

NGC 4945 appears cigar-shaped from our perspective on Earth, but the galaxy is actually a disc many times wider than it is thick, with bands of stars and glowing gas spiraling around its center.

从地球的角度来看，星系 NGC4945就象一根雪茄，但实际上该星系是圆盘状的，其直径是厚度的许多倍。排列成条状的恒星以及炽热的气体在中心周围盘旋。

Special localized cutting communication with the customer; 2.5 If not available notched hole diameter less than 60 mm hole, can be used to be relatively enlarger for the opening; After opening 2.6 backplane approach, starting with the opening negative, positive exposed bit sharp, nated from the positive control (both sides maintain collapse teeth); 3 connected corner of the corner of the 3.1 connection method, identify three Kok code on the middle and lower (50 mm poured from top to bottom. Another try a) 3:00 even in the corner of the counter and cross wooden cabinet on the sideboard; 3.2 corner of the Outer Limits with a shutter-ping; 3.3 In accordance with the drawings corner of the size, will have a fixed angle of the black reinforce the lower corner with 3:00 counters even

特殊局部地方的切割必须与客户沟通； 2.5如割口不大可用圆孔、直径小于60mm孔，可用相对应的扩孔器进行开孔； 2.6后背板开孔方法，先从反面开孔，正面露出钻头尖时，再从正面往里操作； 3 转角条的连接 3.1转角条的连接方法是，找出三个角码，上中下（上下50毫米往里，另居中一个）三点连在与转角柜交叉柜体的侧板上； 3.2转角条的外沿与门板一平； 3.3按照图纸转角条尺寸，将已固定的转角条用黑钉上中下三点与转角柜连

Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

原文对于寒冲压技术的合种、特征及开展圆背做砬简单概述；阐述了冲压整机的构成本理、基础模具构造与活动进程及其设计本理；对典范的冲压件模具进佳的了设计：大曲径三通管冲压复合模设计掀世了大直径三通管的减工困难、带无沉动凸凸模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、长音器后挖碗落料、拉深、冲孔、翻边复合模设计、一模二件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链舒方成形工艺及模具设计、半自动送料切角安装设计、涩板式送料拉深、冲孔、翻边模设计完成自动送料、长管少孔冲模设计、带凸缘台阶方盒形整件拉深模战盒形件正壁小孔翻孔模。

To study the effect of thermal deformation parameters such as punch velocity,forming temperature and forming load on forming process of 5A02 aluminum alloy microgears,a microdie is designed and fabricated and pressing ratio is used as evaluation parameter to indicate compactness.

为了研究凸模速度、成形温度和成形载荷等热变形参数对5A02铝合金微型齿轮成形的影响规律，设计制造了微型齿轮模具，在自行研制的微塑性成形设备上，将压入高度比作为填充程度的评价参数进行了成形实验，成功获得了质量良好的节圆直径为Φ1 mm的5A02铝合金微型齿轮。

Moreover, their mass fractal dimensions Df, calculated by bi-logarithm relation between setting rates and equivalent circle diameters, were 2.0972.801, and the Df value for granules in the 5th compartment was the highest one among them, indicating that the most compact granules were formed. The least compact granules were observed in the 4th compartment, and the granules in the 1st and 2nd compartments show close compactness. However, the highest average setting rate for granules was detected in the 1st compartment.

依据沉降速率-当量圆直径的双对数图计算出的各格室中颗粒污泥的质量分形维数Df处于2.0972.801之间，大小顺序为：第5格第3格第2格第1格第4格，表明第5格室中形成的颗粒污泥较为密实，而第4格室的密实程度最小，但密实的颗粒污泥并不一定意味着较高的平均沉降速率。

Steel handrails with top rails of galvanised steel pipe of 34 mm outside diameter and two rows lower rails of 19 mm diameter, galvanised steel round bars, to be fitted on structural decks as shown on the G.A.

如总布置图所示，钢扶手的顶部采用外径φ34mm的镀锌钢管，下面安装有2排直径为φ 19mm的镀锌钢管，并且镀锌的钢制圆杆安装在甲板上，扶手的布置应满足规范的要求。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。