弯

The results show that the amorphous PLGA fiber with porous structure (0.1-1.0 μm) is obtained by diluted solvent spinning method and the mechanical properties is affected by pressure and temperature. Bending strength and shearing strength of the samples increase firstly and then decrease with the increase of molding temperature and pressure. While the molding temperature is 160℃and the pressure is 105MPa, the PLGA materials possess optimal mechanical properties, bending strength, shearing strength and bending modulus 187.3 MPa, 100.0 MPa and 2.5 GPa, respectively. The mild temperature molding PLGA materials are desired to play a grate role in non-bearing internal fixation devices.

研究结果表明：非晶多孔结构的PLGA纤维可通过溶液沉析纺丝的方法获得，其孔径为0.1~1.0μm；压制压力和压制温度对材料的力学性能影响较大，材料的抗弯强度、剪切强度和抗弯模量均随着温度和压力的增大而先增大后降低；在压制压力为105MPa，压制温度为160℃时，试样的力学性能比较理想，此时，其抗弯强度可达到187.3MPa，剪切强度达到100.1MPa，抗弯模量达到2.5GPa，可望作为非承重部位骨折愈合内固定材料。

Did you know that cold-formed steel represents over 40 percent of the stell construction market,and this share is increasing?

这两个小时的课程所讨论的是冷弯型钢的生产加工过程，冷弯型钢设计的基本原理，冷弯型钢对于其他建筑材料的优势，当今建筑市场冷弯型钢的使用，以及连接方法。

For the purpose to figure out location and function relations of three-dimensional syphon's unfolded curve with any bend angle, any diameter and any section, and to make integration of design and manufacturing for three dimensional big-diameter syphon, methods of engineering mathematics and analytic geometry are provided. Syphon's unfolded curve function in three-dimensional station is analyzed and built; the corresponding MATLAB procedures are compiled at the same time.

为了解决弯管在弯曲角度、直径、节数等变化时的三维弯管展平曲线的坐标位置以及函数关系问题，以实现大直径弯管的三维设计与制造的自动化、一体化，通过利用工程数学及画法解析几何的方法，分析和建立了弯管在三维状态下的展平曲线方程，同时编写了相应的MATLAB程序。

The phase of ω0 frequency fluctuates tempestuously. The resonance peaks of flexural and torsional vibrations response are present at 2/3ω0 1/2ω0 1/3ω0 and 1/4ω0 with three kinds cracked rotor models. Near 1/2ω0 frequency, quasi-periodic and chaotic motions maybe appear. Periodic, quasi-periodic and chaotic motions show on alternately when the rotating speed is near to 2/3ω0.Combined step-by-step integral method with traditional transfer matrix method, an increment transfer matrix method is put forward.

研究结果表明：各种故障情况下，华北电力大学博士学位论文弯振和扭振之间都存在祸合关系，但弯扭祸合振动一般不会威胁机组安全运行：在叶片丢失或滑环飞脱故障时，将产生很大的弯振，同时各转子扭振也将被激发出来，它以工倍频和前三阶固有频率为主；在各种电气故障情况下，各转子都很快被激励出较大幅值的扭振来，相应各转子弯振也发生一定的变化，但它的变化明显滞后于扭振，扭振和扭矩主要以前三阶固有频率为主。

There's a hairpin in first or second gear at turn 10 and at the exit there is quite a lot of wheelspin, which makes it very difficult for the tyres.

第十弯是个挂一或二档发夹弯，出弯时轮胎会出现打滑，对轮胎来说是很难对付的弯。

Results indicated that faiure below surface was alveolate and pressure of inner concave of the below was increased.

结果表明，失效弯管内表面呈蜂窝状结构；由于直管与弯管的管径差异，使弯管内壁凹面压力增大而导致气泡破裂造成气蚀条件；同时在弯管凸面沉积了结瘤物。

The slab has been used more than 30 years. The mass of the slab have diseases in varying degrees by investigation, so the problem faced us is to strengthen and remake the slab. In addition, the slab will be used in underdeveloped region of our country. Therefore, it is very important to evaluate the load bearing capacity of slab with slightly curved bottom. The research information of the slab that has been used for forepassed decades is extremely few.

微弯板在桥梁中使用已有三十多年，在调查中发现大多微弯板都存有不同程度的病害，也就面临着对旧桥微弯板的加固改造的问题；另外，在我国某些经济尚不发达地区的桥梁建设中仍在采用，因此，对微弯板的承载力的正确评定也显得十分重要。

On the basis of research of Bend Pipe machine's principle and Numericl Control system, by a...

通过对弯管工艺的分析，本文在研究弯管机工作原理和控制系统的基础上，以面向对象编程技术为手段，设计和开发出了基于工业PC和WINDOWS 98的双模数控弯管机数控系统，通过调试已成功应用于STAR-03W数控弯管机上：同时，也对在WINDOWS 98平台下开发数控系统所存在的实时性问题提出了解决方法。

Iron bars will bend and break,bend and break,bend and break,Iron bars will bend and break,my fair lady.

铁条也会弯折，会弯折，会弯折，铁条也会弯折，我的小姐。

Main produces:1,Piping producing equipments: 3D Digital Control Bender, Coil Straightening Guillotine, Pipe terminal Molding, Digital Control Flute Shape Pipe Machine, Digital Control Distributor Drill, Automatic Grid loading and Groove rolling Equipment, Automatic 2-end Digital Control Chamfer Equipment, Tee Flaring / Flating Equipment2,Heat Exchanger Producing Equipment: Long-U Shape Benders, Short-U Shape Benders, Horizontal Expanders3,Others: Hydraulic Pressure Single Benders, Pipe Pressing Machine, Digital Control Double-head Chamfer Machine, S-shape Feeding and Shaping Machine, Welding Machine, Hydraulic Sawing MachineWe are stick to the spirit of strict quality management, sustaining technology progress and perfect after service, service for our customers.

主要产品：1、配管加工设备：三维数控弯管机、盘管校直切断机、管端成型、数控笛形管机、数控分配器钻孔机、自动装网滚槽机、全自动双端数控倒角机、三通扩口机。2、空调换热器生产设备：长U弯管机、小U弯管机、卧式涨管机。3、其它加工设备：液压单弯机、压管机、数控双头倒角机、S形送料整形机、展架焊接机、液压锯床。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。