down direction meaning in English
下行方向
Examples
- The test runs will only involve about six trips in both up and down directions
试车期间，列车只会上下行各试六次。 - Down direction valve
下行控制阀 - The test runs will only involve about four and five trips in both up and down directions
试车期间，列车只会上下行各试四至五次。 - The test runs will only involve about four to five trips in both up and down directions each night
试车期间，列车只会上下行各试四至五次。 - The test runs in each early morning will only involve about four and five trips in both up and down directions
每次试车期间，列车只会上下行各试四至五次。