החיפוש שביצעת - international convention ((using dimensions) OR (using dimensionless)) model wave - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
international convention » international cooperation, international context, international communication
using dimensionless » using dimensionality, design dimensionless, using dimensional
using dimensions » using dimension, using dimensional, missing dimensions
model wave » model waves, model dave, mode wave

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