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A mathematic model,which deals with the relationship between maximum temperature of thick plate butt multipass welding and weld heat input,interpass temperature,ambient temperature and the distance of measuring points to heat source center,was founded using multivariant nonlinear regression analysis.

采用多元非线性回归的方法,建立了厚板对接多道焊的最高温度与焊接线能量、层间温度、环境温度以及测点到热源中心的距离之间的数学模型。通过相关性检验、线性回归的显著性检验以及回归系数的显著性检验,证明了模型可行;同时分析了回归系数与测点到焊缝中心距离之间的关系。结果表明,它们之间的关系是一种非线性关系,而且呈现出了一定的变化趋势

The process formulas consist of a complexing agent with a structure ofx synthesized by several procedures, and copper acetate and sodium dihydrogen phosphate.

开发出钢铁基体上中性无氰镀铜工艺,其配方中的配位剂是需要经过多道工序合成的具有x结构的化合物,还含有醋酸铜和磷酸二氢钠。

No hierarchical when cutting compound materials.

可同时进行多道切割;,改装现有机械的费用底;切割复合材料不产生分层

Most IS managers would rather tangle with backend databases than backhoes, hard-drive controllers than city controllers.

多数信息系统的经理宁愿与后台数据库打交道,而不愿与挖土机打交道;宁愿与硬盘控制器打多道,而不愿与市政控制人员打交道。

The relationship between the processing parameters and the dilution and the effective utilization of powder coefficient were explained theoretically In the meantime, the theoretical method to analyze the variation of the microstructure and the properties of the cladded layer were formulated.

建立了多道搭接技术条件下熔覆层稀释率、粉末有效利用系数和激光热有效利用率的方程。在搭接过程中,熔覆材料的损失机制主要是烧损。

In this dissertation, the arch bridge was discretized by the FEM according to its structural characteristics with the spatial beam element simulating the tied beams, end floor beams, middle floor beams, arch ribs and the like and with the spatial link element simulating the suspenders to erect the bridges spatial mechanical computational finite element model.

该拱桥的拱肋主要承受压力,弯矩较小;系杆梁虽然是一拉弯构件,但由于布置有多道预应力筋,截面全跨受压;吊杆张拉力比较均匀,且吊杆张拉力对桥面系的线形控制作用比较明显;桥梁各构件受力和变形均在桥梁设计规范规定范围之内,表明桥梁结构受力合理。

According to the seismic design code of China, the column of a frame structure should be stronger than the beam under the ground motion.

按照框架结构抗震概念设计的要求,结构应具有多道抗震防线,其中一个原则是&强柱弱梁&。

But this wood is very hard to deal with them, it is the fruit itself, contain too much sugar and fruit gum, in order to make it into finished products, the non-deformation, non-cracking, to go through up to 80 deal with multi-channel processes, and Add some of the necessary chemical raw materials, processing cycle time of up to five and a half months.

可是这种木材处理起来非常的难,它本身是果树,含有过高的糖分和果树胶,为了使它做成成品后,不变形,不开裂,要经过多达80多道工序的处理,而且添加一些必要的化学原料,处理周期长达五个半月的时间。

Trans-Blot Plus Cell 170-3990 Trans-Blot Plus Cell With Plate Electrodes and Super Cooling Coil, includes 3 gel holder cassettes, buffer tank, lid with power cables, 6 fiber pads, 1 pack blot absorbent filter paper (26.5 x 28 cm, 30 sheets), roller, stirbar 170-3991 Trans-Blot Plus Cell and PowerPac HC Power Supply Accessories 170-3994 Trans-Blot Plus Gel/Cassette Assembly Tray 170-3995 Fiber Pads, 27 x 28.5 cm, 2 170-3996 Blot Absorbent Filter Paper, 26.5 x 28 cm, 60 sheets 170-3997 Stirbar 170-3998 Trans-Blot Plus Roller, 6 wide 170-39 Trans-Blot Plus Gel Holder Cassette With Clamps 170-4990 Trans-Blot Plus Super Cooling Coil 170-4991 Trans-Blot Plus Platinum Anode Plate Electrode 170-4992 Trans-Blot Plus Stainless-Steel Cathode Plate Electrode 170-4995 Trans-Blot Plus Cell Buffer Tank 170-4996 Trans-Blot Plus Cell Lid With Cables 170-4997 Gel Holder Cassette Clamps, for Trans-Blot Plus cell, set of 3 9 规格:说明:运用Mini-PROTEAN II 多道筛选仪,可以快速有效地筛选 40 种不同的抗体或血清,无需把western

转印条件可调,能在很大的分子量跨度上获得最佳转印效果*耐用的板式电极能产生强大而均一的电场,而且电极在槽内的位置灵活可换;不论运行1、2 或3 个转印夹,电极间距可调节到最小以获得最大的场强和转印效率*凝胶支架转印夹保证整个凝胶与印迹膜表面的均衡接触*转印夹的铰链设计能防止凝胶滑动,便于转印夹组装*颜色标记的转印夹及电极板确保在转印槽内的正确定向*特级冷却芯和冷却水循环器进行温度调节―可理想地用于天然酶或高强度转印,或用于延长转印时间时减少缓冲液的损耗*可选择的组装盘是凝胶三明治和转印夹组装的理想选择 Trans-Blot Plus 转印槽能从单向和双向大格式凝胶上均一、高效地转移蛋白―配合使用新推出的 PowerPac HC 电源,多数蛋白都可在1530 分钟内完成转印。

According to the emphatic analysis of processing,the 4 kinds of laser damage-free cutting methods,including traditional optimized parameter method,laser multiple-pass cutting,laser cutting with controlled fracture by stress guiding method and aided laser cutting method,are summarized.

介绍了硬脆性陶瓷激光切割技术研究的若干新进展,着重从工艺角度系统地分析总结了激光加工陶瓷减少热损伤的4大类型:传统工艺的优化参数法、多道切割法、应力引导控制裂纹切割法以及辅助切割法。

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推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。