A leak occurring in a pneumatic system operating with a nonvolatile gas such as nitrogen poses little danger, while a leak occurring in a hydraulic system can result in {HEAD ~ contamination} of {TAIL ~ the oven} or the workpiece or fire risks if a flammable hydraulic fluid is used 
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A leak occurring in a pneumatic system operating with a nonvolatile gas such as nitrogen poses little danger , while a leak occurring in a hydraulic system can result in { HEAD ~ contamination } of { TAIL ~ the oven } or the workpiece or fire risks if a flammable hydraulic fluid is used
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH