| 单词 | gas concentration |
| 释义 | gas concentration Each parcel has gas concentration, pressure, temperature, and humidity. Retrieved from Wikipedia CC BY-SA 3.0 Manufactures can customize electrochemical gas detectors by changing the porous barrier to allow for the detection of a certain gas concentration range. Retrieved from Wikipedia CC BY-SA 3.0 The gas concentration level reading peaked at 5,000 ppm at around 11 a.m which was mostly methane. Retrieved from Wikipedia CC BY-SA 3.0 Usually, the gas moves from areas of high concentration to areas of low gas concentration around a landfill. Retrieved from Wikipedia CC BY-SA 3.0 He formulated a simple mathematical relationship between the gas concentration and the necessary exposure time. Retrieved from Wikipedia CC BY-SA 3.0 |
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