Actions often come in complementary pairs which cause the interaction between membranes.
That makes us a perfect complementary pair.
They were the two least adapted to survival in this nearly tech-free environment, but they made a complementary pair.
For the 24 edge cubie sets (made up of 12 complementary pairs) there is no restriction on position.
In control systems, critically important signals can be carried by a complementary pair of wires ( and ).
Fortunately, these two colleagues and friends make a complementary pair.
Then, as now, they are a complementary pair.
As we can see, the first bit of a binary image clearly determines which complementary pair it belongs to.
The rectangle or tetradic color scheme uses four colors arranged into two complementary pairs.
In the succeeding 65 years they have become a famously complementary pair.