氢气与空气混合爆鸣实验的改进山东潍坊教育学院王澍棣将一薄塑料食品袋（越落越好）捆在约０．４ｍ长的橡皮管上（检查气密性），将袋中空气排出，连接在制取氢气的简易装置导气管上，待塑料袋鼓起后，将橡皮管从制取装置上取下，同时用手捏紧橡皮管，离开气体发生器，用... Improvement of hydrogen and air mixing explosion experiments Wang Wei, Shandong Weifang Institute of Education, bundled a thin plastic food bag (as far as possible) on a 0.4 m long rubber tube (check airtightness) and put air in the bag. Discharge, connected to the simple device of the preparation of hydrogen gas tube, after the plastic bag bulging, remove the rubber tube from the preparation device, while pinching the rubber tube by hand, leaving the gas generator, with...