His surgical instruments were a knife and a pair of pincers.他的外科手术器械是一把刀和一把钳子。She was no mean performer on a variety of other instruments.许多别的乐器她也演奏得相当出色。You can buy perfectly good instruments for a lot less.你可以少花一大笔钱买到顶...
Other early instruments included the sextant and the astrolabe.另外的早期仪器还有六分仪和星盘.The drum is one of the oldest musical instruments.鼓是最古老的乐器之一。Telescopes and microscopes are optical instruments.望远镜和显微镜是光学仪器.She conducted an...
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....
往昔的点点滴滴涌上她的心头。Bits and pieces of the past raced through her mind.久远往昔的回忆memories of those far-off days他的谈话令人回忆起往昔的时日.His talk was evocative of the bygone days....