Twitter Facebook তাপ ইঞ্জিন heat engine NOMAN EMC 8:30 PM Job Preparation , Latest , Mechanical , Power_Job_Study , Thermodynamics HP HP 3 174 2019-03-18T08:40:00Z 2019-03-18T11:34:00Z 1 128 735 HP 6 1 862 15.00 Clean Clean false false false false ...Read more » 18Mar2019