Practical stationary engineering : in form of questions and answers (1909)
West, Andrew Cassius, 1855- · Boston, Mass. : A.C. West · leaf 233
TOO /1</Ct/ £-£#37 . Figure 70. 220 PRACTICAL STATIONARY ENGINEERING An expansion curve that is lower than it should be maybe caused by a leaky piston or it might be caused by a leakyvalve. … l#T£ tfjj/y/ss/o*/
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