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- A contrail occurs when the jet's water vapor condenses around its own exhaust particles. 我们所看到的每一层云都是由雨滴或象这样的水晶组成的，所以就叫做轨迹。
- The dispersity of 5 kinds of diesel particles were collected and detected by using high volume air sampler with DFG-1 meter, and 3 kinds of diesel exhaust particles were extracted and analysed. 利用DFJ－1型五码分级器对3种型号柴油机车排出颗粒物进行分级采样，并对此3型颗粒物进行有机提取物组分分析。
- The tail exhaust pipe of the motor vehicle emitted poisonous smoke. 机动车的尾部排气管排出有毒的浓烟。
- The particles in an atom are infinitely small. 原子里的粒子极小。
- He is studying the properties of these particles. 他在研究这些粒子的性质。
- Such fine particles suspend readily in water. 这种微粒极易悬浮在水中。
- Light often behaves as if it were made of particles. 光常常表现出好象它是由粒子组成似的。
- Substances consist of small particles called molecules. 物质是由叫做分子的微粒组成的。
- The particles that descend in this fashion. 辐射尘以这种方式落下的放射性粒子
- We can see the dust particles floating in the sunlight clearly. 我们可以很清楚地看到阳光下的灰尘颗粒。
- The exhaust valve on my car have burn out three times. 我车子上的排气阀已烧坏三次。
- Exhaust gas has been incriminated in air pollution in cities. 废气已过视为城市空气污染的原因。
- The exhaust valve on my car has burnt out three times. 我车子上的排气阀已烧坏三次。
- Something has gone wrong with the car's exhaust system. 汽车的排气系统出了故障。
- Effective measures have been taken to prevent exhaust pollution. 业已采取有效措施以防止废气污染。
- In gases, the particles are far apart, with empty space between. 在气体中分子之间的距离很大，彼此之间有空隙。
- He discovered some pinpoint particles in the liquid. 他在液体中发现了一些极其微小的细粒。
- Exhaust particles 排气颗粒
- His face was beaded with small particles of rain. 他的脸上挂满了小雨点儿。
- In the sub-zero weather, their exhaust plumb white in the grey street. 在严寒天气，他们的排气管在灰色的街道上吐著缕缕白烟。
