用一台轻便的弹簧秤称重。

A portable torsion balance is used for weighing.

简谐运动：实验板，弹簧秤，载重板，砝码，码表。

Harmonic Motion: experimental board, spring weight, loaded board, counterpoise, stopwatch.

加速整个系统，张力会变大，这可以从弹簧秤的读数中，看出来。

You accelerate the system, the tension will increase and you will see that, you will read that on the scale.

快速树干注射器主要由贮液瓶、压力表、弹簧秤、输液管、注药口、气门嘴、注射针头、开关等几部分组成。

The quick trunk injector comprises a reservoir pressure-meter, a spring balance, a transfusion pipe, a liquid valve, an air pinhead and a switch.