(1/3)The apparent viscosity of a thermoplastic is a function of shear ra(2/3)te- the viscosity decreses as the shear rate and, hence, the veloci(3/3)ty increases . 求翻译!
1. 比例,率;比率[C] The unemployment rate is rising in that country. 那个国家的失业率正在上升。 2. 速度,速率[the S] The car was going at the rate of 60 miles an hour. 汽车以每小时六十英里的速度行驶。