The influence of the pile type and the friction angle of the contact surface on the limit bearing capacity of the piles and the composite foundation is discussed with an example.

通过算例，讨论了桩型及桩土接触面上的摩擦角对散体材料桩及其复合地基极限承载力的影响。

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Hardness and friction coefficient of the three composites were determined to investigate the influence of particle type and content.

研究了颗粒性质和含量对复合材料硬度、摩擦系数和耐磨性能的影响。

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Traveling wave ultrasonic motor is a new type of actuator driven by friction.

行波超声马达是一种靠摩擦力直接驱动的新型驱动器。

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After turning off the jet and rocket he will deploy an air brake at 800mph, parachutes at 600mph and finally put his foot on a car-type friction brake at 250mph any faster and the brakes could explode.

ECONOMIST: The land-speed record