Advances in ethane dehydrogenation to ethene have been reviewed.乙烷脱氢制乙烯是乙烷利用的有效途径.Results show that PCE was dechlorinated reductively to DCEs and TCE, probable VC and ethene.结果表明:在微生物的作用下PCE还原脱氯为TCE和DCEs, 可能有VC和乙烯....
然后去核再将李子加工成糊状。Then stone the fruit and process the plums to a puree.快到吃李子的季节了。The plum season is about to begin.今年李子树不开花.There is no blossom this year on the plum trees....
He always fills his glass till it overflows.他总是把杯子斟得很满.A distributary overflows its banks.分流水溢出河岸.It overflows with soft sighs all whisper to you.我要对你无限轻声叹息....
"That's the old foresters" garden,' she said in reverential tones.“那是老护林人的花园，”她用充满敬意的语气说。Relatively few foresters or tree breeders consider the presence of edaphic ecotypes.考虑到存在土壤生态型的林学家或树木育种家相当少.The details o...