例句與造句

1. Regulations in most states now require the counter to be capable of reading down to 200 DPM ( disintegrations per minute ) for open access areas.
2. Note : A microcurie ( \ mu Ci ) is a measure of the disintegration rate, or activity, of a radioactive source; it is 2.22E06 disintegrations per minute.
3. Dr . John Candler Cobb, Professor of Preventive Medicine at the ppm plutonium in the sand by weight ), 15 million times higher than the state standard of two disintegrations per minute.
4. It's difficult to find disintegrations per minute in a sentence. 用disintegrations per minute造句挺難的