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- R. M. White and F. W. Voltmer, “Direct piezoelectric coupling to surface elastic waves,” Appl. Phys. Lett. 7, 314-316 (1965). 陈永裕,层状表面声波元件之理论、实验及其应用,国立台湾大学应用力学研究所博士论文,中华民国九十一年一月。
- Nondestructive test to determine the surface elastic modulus, shear modulus,brinell hardness of brittle and quasi-brittle materials and compressive strength ofconcrete were investigated based on the analyses of Hertzian contact. 首次采用球压法尝试了脆性和准脆性材料的表面弹性模量、剪切模量,布氏硬度和混凝土抗压强度的无损测试研究。
- To evaluate the carrying capacity of the existing AC pavement,the surface elastic deflection is measured using the Beckman beam or FWD,and the compositive elastic modulus can be calculated. The standard control value of the modules recommended is 188 MPa. 采用贝克曼梁或落锤式弯沉仪(Falling Weight Deflectometer;FWD);测定旧沥青路面表面回弹弯沉;计算综合回弹模量;来评价旧沥青路面承载能力;并推荐控制标准值为当量回弹模量宜大于188 MPa.
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- The surface of the liquid gradually crusted over. 液体表面渐渐地结了一层皮。
- A breeze ruffled the surface of the lake. 一阵微风吹皱了湖面。
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- The calm water surface is very much like a mirror. 那平静的水面十分象一面镜子。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- He is honest only on the surface. 他只是表面诚实而已。
- Keywords Surface model of adsorption;Surface elasticity;Mechanism of antifoaming action;Stability of foam; 泡沫的稳定性;消泡机理;表面吸附模型;表面弹性;
- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- The hard outer portion or surface area of bread. 面包皮面包的表面区域的硬皮
- Surface mail takes longer than airmail. 普通邮件比航空邮件慢。
- The surface of the lake is quite still. 湖面相当平静。
- It's2 yuan by surface mail and3.6 yuan by air. 寄平信2元,寄航空要3元6角。
- Wheels won't bite on a slippery surface. 车轮打滑。
- The surface must be thoroughly clean. 表面必须彻底弄清洁。
- The surface between the ribs of a ribbed vault. 梁腹,腹板某扇形拱的胁拱之间的平面
- An indented or concave surface or area. 凹陷,洼地凹的表面或地区