In this paper, we report self assembly pseudorotaxane of cucurbit\uril with alkylane diamines by suing 1H NMR spectra (n=5-8).
本文以核磁共振谱仪为手段 ,对一类新发现的环状化合物—瓜环 (cucurbit[n]uril,n =5- 8)为主体 ,链状有机胺为轴材的自组装类轮烷的形成过程进行了初步的研究。
A nonlinear dynamic model for crankshaft system of diesel engine was established by considering varied inertia and nonlinear dry friction as well as nonlinear elasticity between piston and cylinder.
通过系统响应的时域波形图、幅值谱图、相轨迹图,分析了曲轴轴系的周期、拟周期、混沌等复杂的非线性动力学现象。
To simulate combined testing for all of the important bearings on aviation engine main shaft,a shafting bearing tester is designed.
为模拟航空发动机主轴轴系所有重要轴承联合试验,研制了航空发动机轴系轴承试验机。
All bearings are rolling bearings and the shafts are made of alloy steel.
轴支承全部采用滚子轴承。轴材料均为合金钢。链条均为强制润滑。
The Axle Material and Fatigue Design Method for High Speed Multiple Units
高速动车组车轴材料及疲劳设计方法
Application of Oil-free Lubricating Material to Long Shaft Bearings for Dog Transfer
拨入机长轴轴承无油润滑材料的应用
Plain bearings--Compression testing of metallic bearing materials
GB/T16748-1997滑动轴承金属轴承材料的压缩试验
A document written on this material.
纸莎纸卷轴写在这种材料上的文献
Second Suggestion for Developing Bimetal Strip for Friction Resistant Bush
开发耐磨轴瓦用双金属带材的再建议
How do engineering materials deform when bearing mechanical loads?
如何做工程材料变形时,轴承机械载荷?
Low Ni High Mn Cu-Al Alloy Bush for Hot Plate Mill
低镍高锰铜铝合金轴瓦新材料的研究
Fatigue Behavior and Fatigue Life Prediction of Metals under Multiaxial Cyclic Loading;
金属材料的多轴疲劳行为与寿命估算
Properties of Biaxial Weft Knitted Thermoplastic Composites;
纬编双轴向热塑性复合材料性能研究
Strengthening and Tougheningresearch on the Material ZG25Mn of Axle-Box Base;
抱轴承箱材料ZG25Mn的强韧化研究
Study on the Carrying Capacity for Cylindrical Roller Bearings Made of New Materials;
新型材料圆柱滚子轴承承载能力研究
Preparation and Research of Axial GRIN Polymer Materials and Elements;
聚合物轴向GRIN材料及器件的研制
Analysis on Mesoscopic Mechanics of 2D Biaxial Braided Composites
二维二轴编织复合材料细观力学分析
Application of Filmatic Bearing Oil on High-speed Rod-rolling Mill
油膜轴承油在高速线材轧机上的应用
Cyclic Test of Architectural PVC Membrane Materials under Biaxial Orthogonality Tensile Loads
建筑PVC膜材双轴正交拉伸循环试验
Transmission Shaft Reinforced by 3-D Braid with Bladder/VARTM
气囊/VARTM工艺成型三维复合材料传动轴
Study on Increasing Pre-finishing Temperature of GCr15 Bearing Steel Wire
提高GCr15轴承钢线材预精轧温度的研究
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