| 1. | Standard test method for low - pressure air test of vitrified clay pipe lines
上釉陶土管道的低压空气试验的标准试验方法 |
| 2. | Low pressure air bottle
低压空气瓶 |
| 3. | Standard practice for testing concrete pipe sewer lines by low - pressure air test method
低压空气试验法测试混凝土污水管道的标准实施规程 |
| 4. | Test method for installation acceptance of plastic gravity sewer lines using low - pressure air
使用低压空气对塑料自流排水管道安装验收方法 |
| 5. | Standard practice for testing concrete pipe sewer lines by low - pressure air test method metric
低压空气试验法测试混凝土污水管道标准实施规程 |
| 6. | The nm burners will develop their nominal ratings with low air and gas pressures ( 4 osi = 17 , 6 mbar )
Nm炉头开发了额定低压空气和燃气下的标称。 |
| 7. | Test method for installation acceptance of plastic gravity sewer lines using low pressure air
使用低压空气对塑料自流排水管道进行安装验收的试验方法 |
| 8. | It was the idea of supporting a craft on a pad , or cushion , of low - pressure air , ringed with a curtain of higher pressure air
这顶计划是将船支承在低压空气垫或低压空气软垫上，低压空气周围围着较高气压空气幔。 |
| 9. | If the pressure changes over a large area , winds start to blow in a huge circle . high - pressure air is pulled into a low - pressure center
如果压力在大范围内变化，风就开始在一个大圈内流动。高压的空气推动低压空气向内。 |
| 10. | If the pressure changes over a large area , winds start to blow in a huge circle . high - pressure air is pulled into a low - pressure center
如果气压在一个大的区域上方改变，风开始形成巨大的环流圈。高压空气进入低压空气的中心。 |
