drainage造句
91. These criticisms have often been the crux of the public case against land drainage.
92. A drainage ditch, for example, has an impact far beyond itself.
93. Surgery involves opening the sinus from the outside, flushing and allowing free drainage into the nasal passage.
94. Aeration and drainage on cold, wet soils can be improved by digging in generous amounts of pea-sized grit and well-rotted manure.
95. From Imperial Beach to Oceanside, drainage canals are being cleaned earlier and with extra attention.
96. About 90 percent of wildflower-rich meadows have disappeared since the Second World War due to intensive agriculture and drainage.
97. The Somerset commoners succeeded in fighting off most attempts at drainage where their contemporaries in the eastern counties had failed.
98. Damp patches elsewhere, especially if they occur after rain, are usually due to defective roof drainage and flashings around chimneys.
99. Ixora is tropical and at its best with excellent drainage and bright light.
100. Where main drainage is not available additional costs are certain to arise.
101. Acid Sulphate Problems from Drainage On low-lying land, drainage can create another major problem, one associated with acid sulphate soils.
102. He says that the drains are adequate, other drainage measures may need to be taken.
103. Intermittent drainage, underground watercourses and vast cave systems are features of the karst.
104. More often, however, navigation engineers were at odds with drainage men, especially when they were working on existing rivers.
105. Elsewhere enclosed fields have been created by Saxons, and produced by medieval forest clearance. moorland reclamation and marshland drainage.
106. Acid water may come from moorland sources or from streams containing mine drainage or effluents from other works.
107. The two together make poor, dry soil more moisture-retentive, and improve the drainage in heavy soils.
108. Later they dug ditches for drainage but did not raise the natural platforms artificially.
109. But these were hardly distinguishable from drainage channels, having none of the features that we associate with canals.
110. The insertion of an endoprosthesis was successful in establishing adequate biliary drainage in all the patients.
111. It helped set in motion renewed enthusiasm for tree clearance in upland catchment areas as yet another aspect of the land drainage solution.
112. Remove foil covering and place plant on a gravel-filled saucer to allow adequate drainage.
113. The process of drainage and enclosure was probably occurring in a piecemeal fashion all through the late Saxon period.
114. Drainage had already leached away much of the water resources of the Great Plains grain belt.
115. Each plastic bag and drainage tile dropped in the coffin makes the world just that much more beautiful.
116. Specific handicaps refer to natural conditions unfavourable for agricultural production, e.g. poor soil, poor drainage or excessive salinity.
117. Much of it is below sea level and only innumerable drainage ditches prevent it from reverting to its natural state.
118. The problem has been compounded by other factors, including increased water abstraction and land drainage.
119. The drainage of peatbogs for forestry and agriculture is making a significant net contribution to greenhouse gas emissions, the report concludes.
120. The confusion arose because of sewage drainage works at the station car park.
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