The phrase "add supplementary" is a correct and usable expression in written English.
You can use it when you want to express the idea of adding more information, ideas, or materials to something that already exists. For example: "We need to add supplementary resources to the lesson plan in order to make sure that our students have a comprehensive understanding of the material."
They also agreed to add supplementary neighborhood map options — online versions of the proprietary maps already used in M.T.A. stations.
As robot control systems are traditionally closed, it is difficult to add supplementary intelligence.
As for the learning, it would be better to add supplementary explanation about "Sublimation" and "Deposition".
The first aims to add supplementary data to the types of explicit models that can currently be exchanged.
One minor suggestion was made to add supplementary explanation to the "radiation skin reaction" item indicating that this question is intended for cancer patients receiving radiation therapy.
To reduce the CO2 emissions while maintaining the concrete properties and reducing the cement content, it is necessary to add supplementary cementitious materials (SCMs).
But over time, as executives wanted to save more, companies added supplementary plans, generally known as nonqualified deferred compensation.
Improvement of subgrade properties using traditional additives such as lime and Portland cement adds supplementary costs.
Recent scores tend to use more complex evaluations adding supplementary biological features.
In this paper the flexibility and self-control of the production system was applicated through the distribution of decision-making by adding supplementary information acquisition and processing tools to former executive units.
The ability of model runs to reproduce the compositional features of Ischia's thermal manifestations, demonstrated here, adds supplementary confidence on reaction path modelling as a realistic and insightful representation of mineral fluid hydrothermal reactions.
