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The method of centrifuge tube culture can be used as a constructing technique of tissue engineered cartilage without scaffold material.Cartilage,articular; Histology; Biomedical engineering; Cell culture

结论在无支架材料条件下，采用离心管培养技术培养的人胚胎关节表面软骨细胞可以构建组织工程化关节软骨，而且接近正常关节软骨的形态和功能。

Usually a bellows will buckle only under a very small torsion angle, and thus its utilities on torque transmitting are limited.

由于波纹管通常在很小的扭转角度下就会发生失稳，限制了其在传递扭矩方面的用途。

I am in improving product quality assurance system, rely on advanced casting equipment and technology, investment casting, casting process silica sol, professional deal with all kinds of complicated structure castings, good at all kinds of stainless steel precision castings, the main products cover : Pipe valve, fast connections, marine hardware accessories, hardware and tools, construction hardware, machinery hardware, locks series, doors and windows furniture accessories, kitchen and toilet hardware accessories (pot handles, burning stalk, ears covered ), Flange, such as Castings, products widely used in machinery, construction, shipbuilding, automobiles, household, medical and other fields.

目前我公司在完善的产品质量保证体系下，依靠先进的精铸设备和技术，采用熔模铸造，硅溶胶精铸工艺，专业处理各种复杂结构铸件，擅长各种不锈钢精密铸件，主要产品涵盖：管件阀门、快速接头、船用五金配件、五金工具、建筑五金、机械五金、锁具系列、门窗家具配件、厨卫五金配件、法兰等精铸件，产品广泛应用于机械、建筑、船舶、汽车、家居、医疗等领域。

The company Main products: tungsten powder, tungsten carbide powder, cobalt powder; Carbide Rods, rotary burrs, rough milling cutter blade, pipes, plates and other special-shaped products; high-density alloy products; Carbide Milling Welding, T-shaped slot milling cutter, reamer, broach, drill, composite cutting tools, etc.; overall carbide saw blade milling cutter, end mill, slot milling, ball milling, cutting tobacco cutter, reamer, drill, scheduled to handle drilling, etc.; folder, mold, measuring, etc.; Company carbide spiral blades and ultra-fine carbide crystals of high-speed milling product line to fill the gaps in the province, the product is widely used in textile, steel, chemical, mining, machining and electronics industries, and become a Canton Panasonic, Wanbao, FAW, Sanyo, HA 1 workers, the volume of HA, Shanggong and domestic well-known military enterprises and many other brand-name manufacturers to suppliers, the company also self-employed or commission Products agents sold Europe and the United States, Japan, Southeast Asia, Taiwan, Hong Kong and other countries and regions, are users.

公司主要产品：钨粉、碳化钨粉、钴粉；硬质合金圆棒、旋转锉、锯片铣刀毛坯、管、板材及其它异形制品；高密度合金制品；硬质合金焊接铣刀、T形槽铣刀、铰刀、拉刀、麻花钻、复合刀具等；整体硬质合金锯片铣刀、立铣刀、槽铣刀、球铣刀、切烟刀、铰刀、麻花钻、定柄钻等；夹、模、量具等；公司硬质合金螺旋刀片及超细晶体硬质合金高速铣刀产品系列填补了省内空白，产品被广泛应用于轻纺、钢铁、化工、矿山开采、机械加工、电子等行业，并成为广州松下、万宝、一汽、三洋、哈一工、哈量、上工及国内知名军工企业等众多名牌厂家的供应商，公司产品还自营或委托代理商远销欧美、日本、东南亚、台湾、香港等国家和地区，均得到用户的好评。

The part I of the experiment will be used a digital particle image velocimetry system to measure instantaneous and non-invasive ensemble-averaged flow fields inside the glass curtain of the ACC. Particularly for the reduced scale test section of ACC that are used in incinerator, we are used to observe the streamline distributions at the middle plane inside the glass curtain in various inlet velocity of the blowers for the one-row, two-row, three-row ACC and the glass curtain with and without holes.

本研究初期将藉由数位质点显像测速仪定量且非侵入式的量测技术，针对焚化炉用空气冷凝器的缩小维度测试件，在不同入口风速、冷凝管排数、玻璃帷幕有无开口方式下，观测其玻璃帷幕内之流体全域速度场。

This year the fund is the only wave of market position will be increased to 80% of the process, the three-pronged positive out of it will be the wave of market fuse?

今年基金市场的地位只有浪潮将增加至80％的过程中，三管齐下积极出这将是市场保险丝浪潮？

Between the guide element (15) and the inner wall of the suction pipe (13) there remains a space for transit of the tubular article.

在导向构件(15)与抽吸导管(13)的内壁之间，遗留下一个供管状物品通过的间隙。

Maximum strain theory and maximum stress theory are considered as the failure criteria of the monolayer.

分析弯矩对管材的影响，讨论了内压与弯矩联合作用下PSP管的应力应变。

Results show that a combustion technique by increasing upper half counter offsetting auxiliary airs progressively and biasing superheater division panels can eliminate gas imbalance and heat deviation , decrease slagging on furnace and reduce NOx emission effectively.

某300MW 逆时针切向布置燃烧器锅炉在不同二次风反切方式下分隔屏向左偏置一定角度时，炉膛、烟道气流流动特性模型试验和数值模拟的研究结果表明：燃烧器上半部分二次风递增反切分隔屏偏置一定角度的燃烧技术能显著改善烟道偏流现象，可防止过大热偏差引起高温对流受热面超温、爆管，同时能降低炉内燃烧器区域结渣程度、减少NOx 生成，且改造方便、效果明显。

April 1 from the traditional annual contract expiration date draws near, the increasingly heated in the iron ore price negotiations, the international iron ore prices and sea freight is expected to become stable against the backdrop of high-pressure boiler tubes in the industry, analysts expect March spot iron ore imports will reach 60 million tons, a record high.

距离4月1日传统的年度合同到期日越来越近，在铁矿石价格谈判日益白热化、国际铁矿石价格上涨和海运费有望趋于平稳的背景下，高压锅炉管业内分析人士预计，3月份铁矿石现货进口将达到6000万吨，创下新高。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。