Просмотр собрания по группе - Ключевые слова
- perennial grasses 4
- perennial herbages 1
- perennial legumes 1
- perennial leguminous grasses 1
- perforated partition 2
- perforated sleeves 1
- performance 18
- performance indicators 2
- performance intensification of industrial activity 1
- performance potential 1
- performance properties 1
- perga 1
- perihelion shift 1
- period of German occupation 1
- periodicity 1
- peripheral speed of the rollers 1
- permanent magnets 1
- permeability 1
- permeable fibrous materials 1
- permeable materials 1