单词	正常工作范围
释义	正常工作范围normal working area
随便看	column stability column stabilized semi-submersible drilling unit column stabilized type drilling rig column-stabilized type drilling rig column stabilized type drilling rig {=column stabilized semi-submersible drilling unit} column still column-- stripper column stripping column-- stripping column structure column sum of squares column support column support cage column supported pier column switching column switching valve column system column tag columntator column technology column temperature column temperature gradient column thermalizing column throughput column top