I want to buy a spring balance.

我想买个弹簧称。

This paper proposes a new spring balance structure used for the robot arm.

介绍一种用于机器人手臂平衡的新型弹簧平衡机构的结构设计与分析方法。

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

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.

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。

Coefficient of linear expansion of metal and density of liquid are measured by the experiment device which is composed of AC bridge and Joly spring balance.

利用交流电桥和约利弹簧秤组成实验装置，测量了金属的线胀系数和液体的密度。