| 1. | Double - pass internal reflection element
双通内反射元件 |
| 2. | Walsh double - pass monochromator
沃尔什双通单色器 |
| 3. | Dual way check valve
双向止回阀双通单向阀 |
| 4. | A double - pass erbium - doped fiber based broadband ase source by utilizing c - band ase compensation
补偿的双通掺铒光纤宽带光源 |
| 5. | A novel modified real - time two - pass filter based digital integration scheme
一种新的基于改进实时双通滤波器的信号数字积分方案 |
| 6. | Two way entry , hall no
双通,厅门第 |
| 7. | Two - way cock
双通旋塞 |
| 8. | Stopvalves for domestic water supply - two - way valves - oblique bonnet type pn 10 ; y - type valve ; technical rule of the dvgw
家庭用供水截流阀.双通阀.倾斜式阀帽pn10型. y型阀. dv |
| 9. | Industrial - process control valves . part 3 - 3 : dimensions . end - to - end dimensions for buttweld , two - way , globe - type , straight pattern control valves
工业过程调节阀.第3 - 3部分:尺寸.对焊用双通球形直式调节阀端对端尺寸 |
| 10. | Industrial - process control valves - part 3 - 3 : dimensions - end - to - end dimensions for buttweld , two - way , globe - type , straight pattern control valves
工业过程控制阀.第3 - 3部分:尺寸.对接焊的双通球形直型控制阀的首尾相接尺寸 |
