In order to get ridded of the non real-time detection methods of artificial site sampled and laboratory instrument analyzed in the field of methane detection in the offshore shallow gas. real-time in-situ detection system for methane in offshore shallow gas was designed by the film interface. The methane in the offshore shallow gas through the gas-liquid separation membrane of polymer... https://www.animationbengal.com/?w=super-price-johnny-cash-at-folsom-prison-fashion-great-buy