Hello,
You would create a vSwitch on the host or a DVS (licence permitting) then add these adaptors to that virtual switch on creation and associate a VMnetwork port group to this switch.
Then with your virtual machines in the network drop down you can select the VMnetwork you created which will enable the VM traffic out of those nics.
Then can be started in Configuration, Networking, Add Networking --> Virtual Machine --> Select the NICS you want for the vSwitch.