This paper analyzed the practical situation of drilling string lateral vibration during drilling, established mechanical model.

The mathematical-mechanical model of slide erosion is founded on the basis of the elastic-plasticity theory.

利用弹 塑性 力学理论,建立了典型滑坡侵蚀的数学力学模型.

There is a reasonable economic limit between general overhaul and renewal of mechanical equipment.

机械设备的大修理与更新之间存在合理的经济界限.

Professional management of various machinery, mechanical equipment and accessories import and export business.

专业经营各种机器 、 机械设备及其配件的进出口业务.

Mechanical equipment advanced production of vegetables and seasoning professional firms.

机械设备先进的生产经营酱腌菜及调味品的专业公司.

Maintain and repair all mechanical equipment and regular inspections.

保养维修机械设备并定时巡视.

Currently, mechanical equipment leasing business has become a large-scale agricultural development characteristics.

目前, 机械设备租赁业务已呈现规模化发展的特点.

The interface between shape memory alloy and composite has great influence on mechanical property of material.

形状记忆合金的非线性及其与复合材料层板的结合界面的力学性能对整体材料的性能影响较大.

The weld mechanical property of base welding material is better than that of acid welding material.

焊缝力学性能酸性焊材差于碱性焊材.

The physical and mechanical property of components are affected directly by the property of residual stresses.

残余应力的性质与大小直接影响零件的物理机械性能.

When the La content is 0.25 % , the 5 CrMnMo steel has the best mechanical property.

当稀土La加入量为0.25%时, 5CrMnMo钢可获得最好的综合力学性能.

The result reactive organosilicon component by the SFP presents excellent mechanical property and water resistance.

结果还表明:合成共聚物的力学性能和耐水性随有机硅含量的增加而明显提高.

The thermal behavior, mechanical property, surface morphology and antibacterial capability were tested.

测试了纤维的热性能 、 力学性能 、 表观形态及抗菌能力.

Different manufacturers, different brands of hot melt Adhesive, composition and performance, the softening point of broadband.

不同厂家 、 不同品牌的热熔胶, 组成和性能的不同, 软化点必然也有差异.

The grafted copolymer used as main polymer of hot melt adhesive is studied.

其接枝物作为热熔胶的基础聚合物.

Edge of high-quality PVC, Italy dragon Edge machine, the Spanish hot-melt adhesive edge.

优质PVC封边条, 意大利飞龙封边机, 西班牙热熔胶封边.

The melt flow inside the cavity is of stable flow overlapped by two streams.

熔体在型腔内的流动是由两股熔体“叠加”而成的稳定的流动.

The Methods : Used to analyze polymer melt flow in extrusion dies are reviewed.

综述挤出口模中聚合物熔体流动分析方法.

The developing process of CRM of polypropylene melt flow rate has been introduced.

介绍聚丙烯熔体流动速率标准物质的研制过程.

Affect the melt flow rate and the cooling speed.

会影响熔体的流动性和冷却速度.

This infor-marion will be of great value to us for developing our new hot-melt adhesiveassistants.

这对开发我国新型热熔胶助剂是很有参考价值的.