两双三元用英语怎么说

"Two pairs of three elements" can be expressed as "Two sets of three items" in English.

The expression "两双三元" comes from mathematics and refers to two groups of three elements, usually used in set theory or linear algebra.

Here are some examples in English:

Example 1:
"We have two sets of three variables, x, y, and z, which we will use to solve the equation."

Example 2:
"In the experiment, we have two pairs of three test subjects who will undergo different treatments."

Translation:
Example 1:
"我们有两组三个变量，x，y 和 z，我们将用它们来解方程。"

Example 2:
"在实验中，我们有两双三元试验对象，他们将接受不同的治疗。"