1) primary-secondary wavelength spectrophotometry
主次波长分光光度法
1.
Determination of Pb in environmental water based on PbXO complex by primary-secondary wavelength spectrophotometry
PbXO配合物主次波长分光光度法测定环境水中铅
2) primary-secondary wave length assay
主次波长光度法
3) two-times dual wavelength spetrophotometry
二次双波长分光光度法
4) twice dual-wavelength spectrophotometry
两次双波长分光光度法
5) primary-secondary wavelengthes computation spectrophotometer
主次波长计算光度法
6) Three-wavelength spectrophotometric methods
三波光长分光光度法
补充资料：主次
1.主要与次要。 2.主语所处的位次。
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