血液循环

One of the needs was a dosing experiment that could be used to determine the level of circulating Rh-positive cells in an Rh-negative pregnant female derived from her Rh-positive fetus.

一个必须做的是一个剂量实验，用来检测在怀孕的Rh阴性女性循环血液中的Rh阳性细胞的含量，当然，这些Rh阳性细胞来自于胎儿。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。