来信刊登:rn我是一个爱美的女孩子,呜呜呜,我长得太胖了.为了减肥,我经常连续三天只吃点苹果,喝点水,见效真的很明显.有时减肥久了,看到美食又控制不住自己,狂吃一顿后又陷入
作为高污染高碳的能源品种,煤炭在支撑中国经济高速发展的同时也带来了日益严重的环境污染、温室气体等问题。在大气污染防治政策不断升级,而天然气供应明显不足的情况下,由热解煤气制备天然气,既可以实现能源的清洁高效利用,又可平衡天然气的供需关系。一些由钙钛矿前驱体制得的催化剂具有很好的水煤气变换反应催化活性以及甲烷化催化活性,同时具有高温耐受性,应用于相对高温、含有焦油成分的热解荒煤气体系,既可以去除其中
Curve equations were established based on experiments to fit the survival rates of Blakeslea trispora(?),Trichoderma reesei and Streptomyces hygroscupicus v
The thermochemical conversion technique was applied in Alcell lignin from ethanol solvent pulping to indagate the utilization of black liquor to energy,and
本文利用石油化工流程模拟软件PRO/Ⅱ对生产流程进行模拟计算，主要研究了气体分馏装置操作压力、操作温度、回流比、原料组成、产品纯度等参数对装置操作、能耗、操作费用的影
For the limit on emission of carbon dioxide and nitrous oxides by environmental protection requirement,producing liquid fuels from renewable,CO2-neutral,and
Fiber-reinforced composite polyurethane foams(PUF)were prepared using oleic-based polyester polyol and bamboo fiber.At the first stage,oleic acid was conver
The phylogenic and genetic relationships in Cornus were studied at molecular levels,for providing new molecular evidences of classification and genetic info