Hertz’s diagram

section s-s s-s

SⅠSⅡSⅢ syndrome

franck hertz’s experiment

Hertz’s contact

Hertz’s contact problem

Hertz’s contact theory

Hertz’s oscillator

Hertz’s solution

Hertz′s contact

(S，S)-(+)-Tetrandrine

16S~23S rDNA inergenic spacer regions

16S~23S rDNA Ribosomal-Spacer-Region

16s~23s rRNA intergenic spacer region

16S-23S intergenic sequence

16S-23S rDNA intergenic

16S-23S rDNA intergenic spacer region

16S-23S rDNA intergenic spacer regions

16S-23S rDNA internal transcribed spacer ITS

16s-23s rRNA gene