straight-line displacement的意思|示意

If the part adds a diagonal straight line arrow, is the variable mark, indicated that its displacement and the pressure are may adjust.

若元件加一斜向直线箭头、则是可变量的符号，表示其排量和压力是可调节的。

Grating digital readout-instrument in a kind of digital meter which is used to measure accurately straight-line displacement.

光栅数显表是一种用于精密测量直线位移量的数字化仪表。