8． 
了pH值和接种物密度对线虫体外培养有较大影响。
The past idea that terrestrial mermithid nematode can"t survive(because lack O2 in water) was changed.8.pH and population density were investigated. 9.
8． 了pH值和接种物密度对线虫体外培养有较大影响。
The past idea that terrestrial mermithid nematode can"t survive(because lack O2 in water) was changed.8.pH and population density were investigated. 9.
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