average number density

With an increase in female parasitiod density, there was a corresponding increase in pupal parasitization rate and the average number of progeny per parasitized pupae.

随着雌蜂密度增加，寄主蛹的寄生率和平均每头寄生蛹中的子蜂数相应提高，但平均每雌产的子蜂数则逐渐减少。

Under some level of error, the theoretical sampling number should decrease as the average density of the mite increases.

在相同误差水平，理论抽样数随平均虫口密度的增加而减少。

The present paper reports the average nucleon number density in the intrinsic states of SU(3) of the Fermion Dynamical Symmetry Model (FDSM).

给出了费米子动力学对称模型中的SU（3）对称极限的内禀态下的平均核子数密度。