大自然不吝惜其恩赐.Nature is prodigal of her gifts.正如《圣经》所说，给我恩赐太多了，我的杯子已经满满当当了。说到杯子，我得去给你倒杯茶来。As it says in the Bible, my cup is running over. Talking of which, I must get you a cup of tea.“ 再想一想吧, ” 他说, “ 不要鲁莽从事. 上帝恩赐的精华可能会被滥用,...
两个人正试图割掉疯长的草。Two men were attempting to scythe the long grass.是要远离那钢筋水泥,逐日疯长的土地?Far from the sprawl of concrete that keeps crawling its way about 1,000 miles a day?...
These stresses arise from the exothermic nature of the reaction during gelation and cure.这种残余应力系由凝胶和固化期间化学反应能放出的热引起的.When an aqueous solution of the protein gelation is cooled, a polyer gel is formed.蛋白质明胶水溶液冷却时形成聚合体凝胶.T...