[填空题]
(a) The tube of a mey .rikcj8pq1h,: p+ nmrcury thermw ai.ti(u56vxv w5az 8ometer has an inside diameter of 0.140 mm. The bulb wva x85.awzi (5utv 6ihas a volume of 0.255 $cm^3$ How far will the thread of mercury move when the temperature changes from 11.5 $^{\circ} $ C to 33.0 $^{\circ} $ C? Take into account expansion of the Pyrex glass. cm(b) Determine a formula for the length of the mercury column in terms of relevant variables. Ignore tube volume compared to bulb volume.