linear radio-frequency mass spectrometer

例句：

1. 1. The data is presented in a linearformat.
   数据以线性格式呈现。
2. 2. The pathis linear and easy to follow.
   这条路线是直线的，很容易跟随。
3. 3. The designis linear, which makes it easy tounderstand.
   设计是直线的，这使得它易于理解。