这就是林业工人用以运送木材的空中索道.This is the cableway which the lumberjacks use to haul out their timber.对农业 、 林业及小企业也给予其它优惠.There are other concession to agriculture, forestry and small businesses.这当然不是林业学的一种自主的发展.This of course was ...
Three novel Schiff bases were synthesized using the reaction of 4 - aminoatipyrine with 3 - formylchromone, cinnamaldehyde and anisaldehyde.用 4- 氨基安替比林与 3- 甲酰基色酮 、 肉桂醛、茴香醛反应分别合成了3种新的席夫碱化合物....
There were two inferences to be drawn from her letter.由她的信可以得出两个结论。The data must be bolstered by inferences and indirect estimates of varying degrees of reliability.这些资料必须借助于推理及可靠程度不同的间接估计.What inferences can we draw fro...
The most common intrusive in the order of igneous rocks is granite.在火成岩系列中最常见的侵入体是花岗岩.Igneous rocks do not contain fossils.火成岩不含化石.The intrusion sequence for igneous rocks is indicated by crosscutting and inclusion relat...