A sua pesquisa - communication collision ((systems dimensioning) or (system designing)) sde linear - não corresponde a nenhum registo.

Talvez deva tentar algumas variações de ortografia:
communication collision » communication commission, communication cohesion, communication collections
systems dimensioning » systems dimensions, systems designing, systems diversifying
system designing » systems designing, system design, system designs
sde linear » some linear, code linear, size linear

Pode obter mais resultados ajustando a pesquisa.