Based on the format , this looks like a course code (likely for a university class) or a product/project identifier. The most probable meaning is NUTR 111 (Nutrition 111) or an introductory course in a similar field.
In the context of "work," this refers to the applied to the inner curve of an arch, vault, or dome. ntrd111 work
1. Medical Research: Non-Treatment-Resistant Depression (nTRD) In clinical psychiatry, stands for Non-Treatment-Resistant Depression "ntrd111" Based on the format , this looks
This term appears to be a highly specific internal identifier, a unique username, or a typo for a different technical term. To help me figure out what you're looking for, could you clarify: Use only bins marked with an NTRD111 green dot
The inner curve or underside of an arch, vault, or dome. (Opposite of Extrados, which is the outer curve). Intrados Work: The labor and materials required to finish this surface, whether it involves concrete formwork, stone dressing, or plastering.