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Use "subproject" in a sentence
"The project number shown in the disputed documents for the “green salt” subproject is 5.13."
"The VRL subproject is being undertaken to provide a uniform mechanism for the international MIR/MDL community to access the standardized resources of IMIRSEL in a robust, yet secure, manner."
"The HUMIRS subproject is designed to provide answers to the Who, What, Where, When, Why and How questions as they pertain to the use of MIR and MDL systems."