在这样的测定中,采用Gooch坩埚或类似的过滤器.Gooch crucibles or similar filters are used for such measurements.所有重量分析需要某种坩埚或器皿保留残渣或沉淀物.All gravimetric measurements require some sort of crucible or dish to hold the residue or precipitate.大多数...
"Prices are down 40 per cent since Christmas," he lamented.“圣诞节以来物价降了4成，”他悲叹道。The bank yesterday revealed a 30 per cent nosedive in profits.该银行昨天透露其利润骤降30％。Costs have been cut by 30 to 50 per cent.成本降低了30%到50%。...
Most of them just stared at her in perplexity.他们多数人茫然地凝视着她。She looked at us in some perplexity.她有点困惑不解地看着我们.He scratched his head in perplexity.他困窘得直抓头皮....