micropascal造句

例句与造句

1. dB re 1 micropascal at 1 m, or about 250 watts.
2. It has a source level of 150 to 165 decibels at a reference pressure of one micropascal at one metre.
3. Each sweep has a duration of 0.2 seconds and an average source level of about 147 decibels at a reference pressure of one micropascal at one metre.
4. They are repeated about every 1.5 to 3 seconds and have a source level of 140 decibels at a reference pressure of one micropascal at one metre.
5. In early lightbulb research it was fantastically difficult to get the extreme vacuum needed, perhaps one microPascal, since gases would be released from a filament or from the glass itself.
6. It's difficult to find micropascal in a sentence. 用micropascal造句挺难的
7. These strange calls were recorded from October to May  peaking in March  and had a source level of about 150 decibels at a reference pressure of one micropascal at one metre.