| 1. | There may also be an increase in the velocity of air particles in the blast wave due to precursor action .
由于前驱波的作用，爆震波中的空气粒子速度可能增加。 |
| 2. | Method for sampling airborne particulates generated by welding and allied processes
对焊接和相关工艺产生中的悬浮空气粒子的抽样方法 |
| 3. | Standard practice for the determination of lead in paint , settled dust , soil and air particulate by field - portable electroanalysis
用场移动式电解分析测定涂料中的铅沉降尘埃土壤和空气粒子的标准规程 |
| 4. | The patterns and shapes of the aurora are related to the flow of charged particles and the magnetic fields
极光的形状取决于带电荷粒子的移动方向及磁场的变化，而极光的颜色则视乎大气层的空气粒子状况。 |
| 5. | The patterns and shapes of the aurora are related to the flow of charged particles and the magnetic fields
极光的形状取决于带电荷粒子的移动方向及磁场的变化，而极光的颜色则视乎大气层的空气粒子状况。 |
| 6. | Airborne particle count test . this testing verifies that the cleanroom , the personnel , and process equipment is performing to the intended clean level
空气粒子数测试。该项试验用于检验洁净室、人员和工艺设备是否达到规定的洁净水平。 |
| 7. | Health and safety in welding and allied processes - sampling of airborne particles and gases in the operator ' s breathing zone - part 2 : sampling of gases
焊接和相关工艺的防护和安全.工作人员工作区空气粒子和气体的取样.第2部分:气体取样 |
| 8. | Health and safety in welding and allied processes - sampling of airborne particles and gases in the operator ' s breathing zone - part 1 : sampling of airborne particles
焊接和相关工艺的防护和安全.工作人员呼吸区空气粒子和气体的取样.第1部分:气体粒子的取样 |
| 9. | Auroras occur as a result of charged particles mostly electrons from the sun colliding with gas particles in the earth s atmosphere , producing a glow in different colours
当来自太阳的带电荷粒子主要是电子与地球大气层的空气粒子碰撞，产生不同颜色的光，这便是极光。 |
| 10. | They are associated with geomagnetic activity brought about by solar wind . auroras occur as a result of charged particles ( mostly electrons ) from the sun colliding with gas particles in the earth s atmosphere , producing a glow in different colours
极光通常在高纬度的地区出现，它们与太阳风引致的地磁活动有关。当来自太阳的带电荷粒子（主要是电子）与地球大气层的空气粒子碰撞，产生不同颜色的光，这便是极光。 |
