NRN

常見(jiàn)例句

The selected determining wavelength was 274.5 run and the reference wavelength of chloarmphenicol was 326 nm, the determining wavelength was 290 nrn and the reference wavelength salicylic acid was 260 nm.
選定氯黴素的測(cè)定波長(zhǎng)爲(wèi)274.;5 nm;蓡比波長(zhǎng)爲(wèi)326nm; 水楊酸的測(cè)定波長(zhǎng)爲(wèi)290 nm;蓡比波長(zhǎng)爲(wèi)260nm。
noise rating number (NRN)
噪聲值數(shù)