Ngā hua rapu - (water OR walter) (conservation OR construction )
Ngā kaupapa kua whakahuatia i roto i tō rapu.
Ngā kaupapa kua whakahuatia i roto i tō rapu.
- Design and construction 34
- Water conservation 30
- Soil conservation 20
- Water 8
- Energy conservation 7
- Water-supply 6
- Handbooks, manuals, etc 5
- Management 5
- Purification 5
- Soil erosion 5
- Soils 5
- Environmental aspects 4
- Hydraulic engineering 4
- Natural resources 4
- Sewage disposal plants 4
- Water resources development 4
- Watershed management 4
- Agricultural engineering 3
- Concrete 3
- Concrete construction 3
- Construction industry 3
- Hydraulic structures 3
- Hydroelectric power plants 3
- Irrigation 3
- Organic fertilizers 3
- Plants 3
- Prestressed concrete construction 3
- Recycling 3
- Storm sewers 3
- Sustainable agriculture 3
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121
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122
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123
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124
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125
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126
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127
Handbook of corrosion protection for steel pile structures in marine environments
I whakaputaina 1981Pukapuka -
128
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129
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130
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131
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132
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133
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134
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135
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136
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137
Application of nitrogen-fixing systems in soil improvement and management
I whakaputaina 1982Pukapuka -
138
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139
Soil and plant testing and analysis report of an expert consultation held in Rome, 13-17 June 1977
I whakaputaina 1980Pukapuka -
140