Of the 32 blood group systems, the Rh system is the largest, containing 61 antigens.

在所有的32种血型系统中，Rh血型系统是最大的，包含了61种抗原。

The human blood group system is based on three different antigens: A, B, and O.

人类血型系统基于三种不同的抗原：A、B和O。

The Rh factor is important when we learn about the Rh blood group system.

当我们了解Rh血型系统时，Rh因子是很重要的。

However, in the Rh blood group system, the antibodies are not automatically produced.

然而，在Rh血型系统中，抗体并不是自动产生的。

For example, you may have AB blood in the ABO blood group system, be Rh positive in the Rh system, as well as being K positive in the Kell system, and so on.

例如，你可能是ABO血型系统中的AB血型，或是Rh血型系统中的Rh阳性，也可能是Kell血型系统中的K阳性，等等。

The Rh blood group system is a classification system for blood that depends on the presence or absence of the Rh antigen - or factor - on your red blood cells.

Rh血型系统是一个血液分类系统，取决于红细胞上Rh抗原或因子存在与否。