Barrel’s weight flexure

section s-s s-s

SⅠSⅡSⅢ syndrome

Barrel’s per Day

Barrel’s thermal flexure

boiler barrel’s water level control

gun barrel’s wear

s:barrel shifter

(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

16S-23S rRNA intergenic spacer sequence

16s-23s rRNA Ribosomal-Spacer-Region