Practical stationary engineering : in form of questions and answers (1909)
West, Andrew Cassius, 1855- · Boston, Mass. : A.C. West · leaf 233
Too tfvc/f Ce/*7//e*£-SS/<? … Figure 71. AMERICAN THOMPSON IMPROVED INDICATOR 221 Suppose you had a leaky valve and a leaky piston.In that case, as a result the expansion curve may appearcorrect and not show the leak.
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