manganese peroxide二氧化锰The sample was molten and decomposed with sodium peroxide , leached and acidified hot water and - volumed.试样以过氧化钠熔融分解,热水浸取、酸化,定容.Explain why barium forms peroxide but beryllium does not.解释为什么钡能形成过氧化...
a woman with peroxide blonde hair漂染金发的女子Explain why barium forms peroxide but beryllium does not.解释为什么钡能形成过氧化物而铍则不能。It has studied the action of hydrogen peroxide on nitrous acid.它研究了过氧化氢对亚硝酸的作用....
他太累了，不得不取消一些约会。He had to cancel some engagements because of tiredness.她想知道之后他们要去哪里约会。She wondered where they were going to rendezvous afterwards.他上大学的时候才真正开始和女孩子约会。He only really started going out with girls at college....
最通常的区域网络地志学是公共汽车 、 戒指和星.The most common LAN topologies are bus, ring and star.教轴承, 分成三角形, 情节坐标格子, 补偿偏斜并且读地志的地图.Teaches bearings, triangulate, plot co - ordinate grids , compensate for declination and read topographic map...
As a boy he was a Manchester United fan.小时候，他是曼联队的球迷。He appeared at Manchester Crown Court on Thursday on a drink-driving charge.他因被控醉酒驾车而于周四在曼彻斯特的刑事法庭受审。Manchester still suffers from urban blight and unacceptable povert...
They went up the Severn from Bristol to Gloucester.他们向塞文河上游驶去,从布里斯托尔港到格洛斯特....a fortified arched bridge spanning the River Severn.横跨塞文河的加固拱桥One man spent months dredging the River Severn.曾有人在塞文河挖了几个月的泥.The longest river ...
This is the tidbit which tempts his insectivorous fate.就是这一点东西引诱它残杀昆虫.It is the fresh fruit that tempts me at this time of year...一年当中这个时节，新鲜水果最能吸引我了。Good wine is irresistible to many people and tempts them to indulge.美酒...
Whenever it snows in Britain we are taken by surprise.每次英国下雪，我们都会感到惊讶。As the snows melt, the flood waters rise.雪融化的时候，洪水会上涨。She watched winds , and snows , and rains , gorgeous sunsets, and successive moons at their full...