请用A4纸、以双倍行距单面打印或誊抄，字迹务必清晰。Please type or write clearly in double spacing on one side of A4 paper only.对于大多数大豆栽培者来说,最好有足以允许机械耕种的行距.For most soybean growers it is preferable to have rows wide enough to permit mechanical cu...
She's worked with stencils before, so she'll be working in the head - painting area.她之前做过模版活, 所以呢,先让她负责上色环节.Stencils are available to aid in the construction of neat flow charts.型板用于帮助构成简洁的程序框图.cut stencils刻蜡板;...
Wind turbines are large and noisy and they disfigure the landscape.风力涡轮机个头大、噪音响，还会破坏周边风景。These turbines can be broadly split into two basic types, the impulse and the reaction turbines.这些汽轮机可大致分为两种基本类型, 即冲动式和反动式.The stea...
I made every effort to be co-operative.我尽了最大努力配合。OBJECTIVE To study the prevention effect of sodium hyaluronate ( SH ) powder on post - operative dura adhesion.目的研究透明质酸钠 ( SH ) 粉雾剂对动物术后硬膜粘连的预防作用.They decided a housing co...
亚胺基杂环丙烷季铵盐的阳离子,一定是按协同反应的方式开环的.The aziridinium ions must all be opened by a concerted process.阳离子表面活性剂通常为季铵盐类.Cationics are usually quaternary ammomium salts.反 离子通常是钠, 钾和铵.The usual counter - ions are sodium, potassium an...