| 释义 |
once-through 英'wʌnsθr'uː美'wʌnsθr'uː COCA²³⁵⁵⁸¹
基本例句
直流¹⁰⁰
Visitors can observe the guard screen of the infrared laser through the night vision snooper scope.它的顶部是一个球型的高压电极，在下部底箱内有一直流高压电源。
When it is in the vertical welding position, the slag and melted iron can not be dripped and the through welding of weld sublayer can be ensured.并对直流电源型的焊条药皮碱性渣系的选择，获得较好的低温冲击韧性。 |