external dimensions

基本解释

It measures all external dimensions including threads, tapers, angles, radii, lenght, diameters, etc.
可检测的参数包括：螺纹中径，大径，锥角，圆弧，长度，直径等。
Because the disc brake the brake torque is big, the stable property is reliable, the external dimensions are small, wear are small, widespread application on hoisting machinery equipment.
盘式制动器由于制动转矩大，性能稳定可靠，外形尺寸小，磨损小，正广泛应用在起重机械设备上。
A digital shot sensor to measure shot-put force in time is introduced, which has the same mass and external dimensions with the normal shot put.
介绍了一种数字铅球，它的质量与外形尺寸均与标准比赛用球一致，能够实时感知铅球运动员在投掷过程中人手施加于铅球的三维力信息。