The mechanism, development, testing and field test of EP DRA are introduced.介绍了EP系列减阻剂的作用机理 、 研制方法 、 中试生产和现场实验的概况.The EP antiwear property is different that it contains different additives.不同的添加剂配伍,聚脲润滑脂的极压抗磨性也不一样.INTECH...
The Sri Lankans have been having no luck with the weather.斯里兰卡人在天气方面运气一直很差。Many Sri Lankans kill themselves by eating the seeds of the yellow oleander, a common shrub.许多斯里兰卡人就是通过吃黄色夹竹桃(一种普通的灌木)的种子丢掉自己的性命.About twenty tho...
It was performed in fashionable Casino ballrooms.人们在时髦的娱乐舞厅里跳这种舞蹈.Some settled into ballrooms or theaters or hotels for weeks or months at a time.有的乐队在舞厅、剧院或旅馆作数月甚至数月的逗留....
Their plane had been severely buffeted by storms...他们的飞机遭受到风暴的重创。The whole of Africa had been buffeted by social and political upheavals.整个非洲都经受了社会和政治动荡之苦。Their plane had been severely buffeted by storms.他们的飞机遭受到风暴的重创。He...
成双的袜子是别在一起的.Pairs of socks are pinned together.鸟常常成双配对.Birds often pair for life.虽未成双,却也海誓山盟,私传表记, 已有无限的风情了.Although they had not made love , they had secretly exchanged solemn vows and pledges, bearing their hearts to e...
马粪尿掺上土, 就是所谓的厩肥.Horses dung and stale mixed soil, were what we called barnyard manure.所产生的家畜粪尿量加重了环境负担.The environmental burden was became heavier due to cow's faeces and urine.古老时期城市经常是有毒地方, 弄脏由人粪尿和残骸.Cities of anc...