珀西对兰花的痴迷可以回溯到1951年。Percy's enchant-ment with orchids dates back to 1951.奇异的兰花the exotic blooms of the orchid兰花和报春花这类野花越来越稀少了.Wild flowers such as orchids and primroses are becoming rare....
本文研究建立了溴苯腈在土壤及水中的残留测定方法.A method was developed for the residue analysis of bromoxynil in soil and water.研究了一种合成2, 6- 二氯苯腈的新方法, 优化出合成反应的最佳条件.This paper studies a new synthetic method of 2, 6 - dichlorobenzonitrile, and ab...
Microbial inoculum could enhance microbial community functional diversity and evenness degree.接种菌剂提高了微生物群落功能多样性和群落均匀度.Sterile cotton - tipped applicators in individual glass tubes conveniently used to obtain inoculum dur...
Selective breeding may result in a greyhound running faster and seeing better than a wolf.选择性交配繁殖有可能培育出比狼速度更快、视力更佳的灵犭是。The wolf snapped at the hunter's hand.这匹狼咬住猎人的手。It is 250 years since the wolf became extinct in...