缝隙

The simulation results of the cylinder-block model were given in the article, consistent with that of Middlemen"s. It was shown that the block part could improve the uniformity of the flow distribution. The analysis of the flow field of some materials with different power-law factor in the die designed by Mckelvey was close to that of Mckelvey"s. It was shown that the flow distribution was uniform in the die that can producesheets with 1200mm in width. During the analysis the flow channel was divided into several parts to get the details about the fluid flow in each area. A conclusion was drawn after analyzing the influence of the die pressure on the flow distribution, that the higher pressure is good for the output and bad for the uniformity of the distribution. Simulation of the die applying the cylindrical main runner showed the fact that when the cylinder replaced the cone the change of uniformity was trivial. The uniformity of the non-block flow channel was so poor that the block in the proper position of the die channel was necessary. The project of the die for the wider sheet was put forth, and the analysis of the fluid flow in the die was shown.

本文模拟了圆柱管缝隙流模型的三维流动场，得到了与Middlemen结论一致的流动均匀性，并通过模拟直观地展示了采用阻尼块可以改善挤出均匀性的现象；分析了多种幂率指数的流体在Mckelvey等人设计的流道模型中的流动分布，得到了与Mckelvey的分析结果接近的压力降和流量偏差；本文建立了1200mm幅宽机头流道的三维有限元模型，并逐个分析各个区域和多个截面的流动分布状况，由此揭示了1200mm幅宽L-型机头流道内的流北京化工大学硕士学位论文动分布基本均匀，并在分析了机头压力对于挤出流动分布的影响后得出结论：较高的机头压力可以获得较大的产量，但是不利于物料均匀分布；模拟了采用圆柱管主流道时机头流道内的流动分布，得出结论：主流道由圆锥管改为圆柱管时对流动均匀性影响不大，通过设置适当的阻尼仍然可以达到挤出平衡；模拟了两端进料式圆柱管无阻尼流道的流动均匀性后得到结论：两端进料式无阻尼结构的流动均匀性较差，宽机头中仍然有必要设置阻尼块；确定宽幅机头流道的基本方案，并设计了一种宽幅防水卷材挤出机头流道的结构，通过流动模拟表明该种结构的流动均匀性较好；考察了宽幅机头对于不同厚度片材的挤出适应性，得到结论：当生产不同厚度的片材时，阻尼块高度需要调整。

Moreover also can remove the ceramic tile, on brick, slit, ceiling, wall, wood, plastic ware, the stone fungus category, the algae, the mess as well as the lichen and so on.

而且还能去除瓷砖，地砖，缝隙，天花板，墙壁，木头，塑料器具，石上的菌类，藻类，苔藓以及地衣等。

THE sign for the American Beauty Electric Iron building in Detroit has only five letters left, spaced far apart in a gap-toothed grin.

底特律美国丽人电熨斗公司的招牌只剩下隔得远远的5个字母，活像咧嘴笑时露出的缝隙很大的牙齿。

When a sea cucumber, also known as the "earthworm of the sea," feels threatened, it spits out most of the water its body contains and becomes either soft and goopy or small and hard.

别名『海蚯蚓』的海参遭遇威胁时，牠会吐出体内大量的水分，使身体变得软软黏黏或是小小硬硬的。这样的形体方便牠躲进珊瑚或岩石的缝隙中，直到意识到危机解除。

Such helmet was usually put on the chain mail cap which had the soft cotton cloth or gunny cloth inside. In the 12th century, the head and face of round helmet were all covered except a chink at eyes; moreover, face plate was punched with many small holes to breathe.

这类头盔通常戴在锁子甲护帽上，锁子甲护帽内垫有柔软的棉布或麻布。12世纪的圆顶头盔，除前面双眼处有条缝隙，整个头部和脸部都被罩住，面板处被凿出许多小孔，借以呼吸。

Hades smiled, the humble half-god, you Try it and then Hades Push threw his sickle the ground, the ground split a gap, actually there was a black name Stygian river.

哈迪斯笑道&卑微的半神，你就试试吧&然后哈迪斯用力的把他的镰刀扔向地面，地上裂开了一条缝隙，居然出现了一条黑色的河名字叫冥河。

Other side of the bow is the direction of the sea, the huge platform in a water depth of the next meters, Xiu pitting the deck, the hatch in the clear water in the debate, extending to the front of Bai Yumi, but they are forever from parking In this area has. 60 years ago with the shame of the awe-inspiring, iron rust in the wreckage of the waves in the gap opened to the Dangyang.

另一侧海面便是船头的方向，巨大的平台陷于水下一米左右深处，朽蚀的甲板、舱盖在海水中清晰可辩，延伸至前方百余米，只是它们从此永远地停泊在这片海域了。60年前的威风与耻辱，在锈铁残骸的缝隙中一波一波地荡漾开去。

Children asked questions out of curiosity and therefore their inquiry is used to provide suggestion, offer doubts, lead for discussion, and ask for supports. Secondly, in the beginning reading period, children use illustration and give impromptus performance to guess and predict the plot of story. During the discussion period, children respond in six ways. Children ask more questions on the previous problems. The reading texts are used as basis for clarification and rational explanation for unreasonable points. Children's reading experience, their life experience, and self-creative stories are used to provide detailed explanation on contracted and unclear reading texts. Thirdly, children's response on reading can be divided into two types: concrete and abstract. Concrete responses include practical suggestion, illustration imagination, and plot deduction. Abstract responses include discussing characters' feelings, conversing about imagination outside the texts, and exploring and metaphors.

质疑、引导谈话、徵求支持的目的；(2)初次阅读时，儿童会以猜测与预测故事发展、为图画提供说明以及即兴表演的方式进行回应，而阅读讨论阶段则有六种回应方式：针对提出的问题再予延伸发问、以文本内容为澄清问题的根据、为不合理处提出可能的合理的解释、填补缝隙，将文本中较为简略或不够详尽之处，赋予更多细节说明、提供自己的经验以为例证以及改编或自创故事；(3)儿童阅读回应之重心可分具体、抽象二种主题类型，具体的回应主题以实用性建议、图像联想、推理情节为主；抽象概念之回应主题则以探讨角色的情感、漫谈故事之外的联想、探索隐含的寓意为主。

Once the brick infills failed, the lateral strength and stiffness had to be provided by the frames alone, which then experienced significant inelasticity in the critical regions.

一旦砖块缝隙填料缺失，其侧向强度与刚性只能转由框架单独提供，致使临界位置严重丧失弹性。

Floor surface Mistaken survey for the survey in general, from interior side leave 8-10 mm rifle, a piece of wood laying article, floors protrude Kok field, using thread nails in the wood keel will be fixed on the floor, after a case-by-piece platoon tight Dinglao.

地板面层的铺装一般为错位铺装，从墙面一侧留出8到10毫米的缝隙后，铺设第一块木板，地板凸角向外，用螺纹钉将地板固定在木龙骨上，以后逐块排紧钉牢。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。