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FremgangsmÕte ved festing i bakken av en dreneringsanordning samt dreneringsanordning sÕledes festet eller for en slik festing
FremgangsmÕte ved festing i bakken av en dreneringsanordning samt dreneringsanordning sÕledes festet eller for en slik festing
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机译:用于固定在排水设备的地面上的程序和由此固定的排水设备或用于这种固定的程序
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摘要
The procedure consists of installing friction elements in the form of one or more lengthwise flexible cables (6, 7) to counteract buoyancy on the inspection chamber (1). The cables extend for some 5 m on either side of fastening lugs (4). They have a stretch limit of one per cent under the force applied to the chamber, and can be metal cables enclosed in plastic sleeves, or of reinforced polymer. A variant can use galvanized iron or plastic sheets in place of the cables.
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