管形的

Cold-roll void forming sheet is an important product in cold-roll forming sheet , which usually includes pipe, square tube, rectangle tube and unusual tube made by special requirements.

冷弯空心型钢是冷弯型钢中的一类重要产品，其通常包括圆管、方、矩形管以及按照特殊要求制作的异形管。

Initial research on phase maldistribution of gas-liquid two-phase flow at a T-junction is reviewed.

回顾了气液两相在T形管处流动时对相分离的最初研究及起因，随着研究的进一步深入，T形管作为两相流分离器逐渐受到石油和化学工业界的重视。

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。

Based on the capillary pressure curve and the fractal geometry, the fractal capillary pressure and the relative permeability model are set up.

在压汞测试的基础上，利用分形几何学原理和方法，建立了毛管压力曲线分形模型和相对渗透率的分形预测模型。

Methods The cuniform tissue of hypertrophic nipple and trigon skin of areolar were excised according to mark after local anesthesia .Pay attention to preserve the ducts.In advance we vertically suture the cut for establishment the diameter of new nipple. Once more we across suture the cut to shorten the nipple. The cut is inverted " T " after operation.

在每侧肥大乳头适当位置上设计2个相对的纵形楔型组织瓣和与之相连的乳晕小三角形皮肤瓣，局麻下切除设计线内组织，注意保护乳腺管，先纵形缝合，确立新乳头直径，再横形缝合，缩短乳头，使缝合后切口呈倒T形。

Methods 43 cases of lumbar stenosis undergone domelike decompression were performed L(subscript 3~4) and L(subscript 4~5) CT scanning pre-and postoperatively.

对弯顶形椎管扩大成形术治疗的43例腰椎管狭窄症患者手术前后进行CT扫描，用Image-Pro软件对CT扫描片进行椎管L(下标 3~4)、L(下标 4~5)的椎管矢径、上关节突内缘间距、椎板间距、截面积测量分析。

Domelike decompression can increase APDC, IFD, ELD and CSAC significantly, especially for CSAC, which is an effective way for lumbar stenosis.

弯顶形椎管扩大成形术可明显扩大腰椎管的矢径、上关节突内缘间距、椎板间距和椎管截面积，尤其是椎管截面积扩大更为明显，是一种治疗腰椎管狭窄症有效的方法。

Is a professional production of metal products and plastic products manufacturers, hardware products are "expansion screw, self tapping screws" and so on, plastic products have fish-shaped expansion pipe, pagoda-shaped expansion pipe, Green straight expansion tube (also known as wall plugs, plastic anchor, plastic expansion pipe, plastic expansion screws).

佛山市环捷五金有限公司是专业研发生产各种五金制品和塑料产品的紧固件企业，五金类产品有&膨胀螺丝、自攻螺丝&等，塑料类产品有鱼形膨胀管、宝塔形膨胀管、绿色直通膨胀管（又名膨胀管、塑料膨胀、膨胀壁虎、塑料胀管），并可以根据您的来图来样定做各种异型非标五金件及塑料制品。

Toptie Welds already designed and produced the narrow gap welding machine, mechanical saddle joint welding machine, numerical controlled saddle joint welding machine, saddle hole cutting machine and strip overlaying subarc welding machine and so on. Those had already applied in some famous pressure vessel and boiler producer successfully and gained consistent appraise.

公司目前已有深坡口窄间隙埋弧焊机、机械马鞍形埋弧焊机系列、数控马鞍形埋弧焊机系列、马鞍形管孔切割机、埋弧带极堆焊等系列产品，并已在国内外著名压力容器、锅炉企业成功投入使用，获得客户的一致好评。

Moreover, scanning tunneling microscopy images of the SWCNT with atomic resolution show that it has a (10, 10) structure with a diameter of 1. 3nm and the current-voltage characteristics in quasi-radical direction reveal its metallic properties.

未经过超声的SWCNTs容易凝聚；观察到纳米管弯曲、分岔的现象，这是由于纳米管的六边形网络中引入五边形、七边形、八边形等缘故；得到（10，10）型SWCNT的原子像；测量了SWCNT的准径向I—V曲线，表现为金属性。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。