Dioxin was the ingredient in Agent Orange, used to defoliate Vietnam.越南战场上用于毁灭林区的“橙剂”，其成分是二氧杂芑。There's also dioxin, a byproduct of paper manufacture and waste incineration.还有二恶英, 纸生产和废物燃烧的副产物.The iron ore sintering ...
Dibenzofuran ( DF ) is one of the model compounds for the study of biodegradation of dioxin - like pollutants.二苯并呋喃 ( DF ) 是研究二英类化合物生物降解的模式化合物之一.The iron ore sintering process is one of dioxin pollution sources.铁矿石烧结过程是二...
Warehouses at the frontier between the two countries fill up with sacks of rice and flour.两国边境地区的仓库里堆满了一袋袋的大米和面粉。John F . Kennedy typified the new frontier spirit.约翰. 肯尼迪为新拓荒者精神的典型人物.A 'frontier-free' Europe im...
Internode The region of the stem between two NODES.节间:是茎上两个节中间的区域.Green or brown flexible petiole, variable internode length. Large trailer.绿色或咖啡色的柔软叶柄, 节间距离易变. 大的悬垂型.When upper internode elongating , sd - I was the most...
The doctor knew that the wounded soldier's life was despaired of.医生知道那伤兵的生命已经无望.Most scientists despaired of ever knowing the physical nature of the stars.大多数科学对了解恒星的物理性质失去了信心.She stood at the corner of Main Street ...
Strips of wood are bonded together and moulded by machine.木板条被黏合在一起并用机器压模成型。The boy moulded clay into balls.这男孩把黏土做成球.They moulded a figure in clay.他们用模子做泥塑人像....