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单词
ambient air standard
释义
WordReference Random House Unabridged Dictionary of American English © 2024
am
′
bient air
′
stand′ard,
Ecology, Physics
the highest concentration of a specific air pollutant at a particular outdoor location, in a specified unit of time, that is not considered hazardous to humans:
The ambient air standard for gas X is 3 parts per million per hour.
1970–75
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self-consistent
self-consistently
self-contained
self-containedness
self-containment
self-contemplation
self-content
self-contentedly
self-contentedness
self-contradicting
self-contradiction
self-contradictory
self-control
self--controlled
self-controlled
self-controlling
self-correcting
self-correction
self-critical
self-critically
self-criticism
self-dealing
self-deceived
self-deceiving
self-deception
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更新时间:2025/12/2 12:46:44