Je was op zoek naar: intraspecies (Engels - Chinees (Vereenvoudigd))

these conversations are for intraspecies communication.
这种交流是只限于同种族内部的沟通。

the first one is we've targeted the intraspecies communication system.
第一个， 我们锁定菌种内通讯系统。

the noel of 0.06 mg/kg bw determined in human volunteer studies (see section 2.2.1) was used to calculate the aoel, with a 2.5-fold safety factor (intraspecies variability).
利用根据志愿受试者研究确定的noel值（0.06 mg/kg体重）(参见第2.2.1节) 并采用2.5倍的安全系数(种间变异性)计算了aoel值。