They are of different sizes,shapes and metals,but they are exactly the same in weight.Ⅱ.单句改错1.Jimmy came close to be killed in a traffic accident the other day.be→being2.At last the tourists managed to escape from the dangerous place,hungry and frightening.frightening→frightened3.Keepi...
A reasonable combination of the characteristic features and properties associated with each of the materials employed, allowing for the specific working conditions of individual units and aggregates, may greatly improve the qualitative and weight /strength characteristics of the whole structures. The ...
We present results of testing soft and high-strength steels for impact compression and show that the dependences of the compression resistance of tested metals on the level of strains are qualitatively similar. It is also shown that, as the strain rate increases, the compression resistance of the...
PROBLEM TO BE SOLVED: To provide a joined structure of different kinds of metals, which joined structure has high joining strength and the small scatter of fracture strength because a high strength fiber, such as carbon fiber, is used to join the different kinds of metals. SOLUTION: The joine...
To evaluate the influence of dual-energy CT (DECT) and Virtual monochromatic spectral (VMS) imaging on: (1) the artefact size of geometrically identical orthopaedic implants consisting of three different compositions and (2) the image quality of the surrounding bone, three similar phantoms—each fe...
a消闲解闷的玩艺儿 Whiles away the time play thing which finds relief [translate] awhen we use metals , it is important to know how they react with different substances, for example, water and oxygen. 当我们使用金属时,知道是重要的怎么他们起反应用不同的物质,例如,浇灌和氧气。 [translate] ...
A new class of pyrene based multifunctional chemosensors for differential sensing of metals in different media: Selective recognition of Zn2+ in organic and... T Raj,P Saluja,N Singh - Sensors and Actuators B-chemical 被引量: 0发表: 2015年 ...
The selection of metal ions was done on the basis of different charges to see its effect on sorption. Experiments were carried out at two different pH, 6 and 9 and in presence of NaCl salt to see the effect of these factors on metal ion removal rate. Interestingly no sorption of metal...
Stainless steel is made from iron, which might be combined with any number of other metals to provide different strengths or corrosion resistance. Such metals include nickel, manganese and chromium. Stainless steel is popular for its lack of corrosion. ...
Effect of metal primers on bond strength of resin cements to base metals However, there is insufficient information about their effect on base metals. The purpose of this study was to evaluate the effect of metal primers on the shear bond strength of resin cements to base metals. A total ...