新城疫 ( NewcastleDisease,ND ) 是由新城疫病毒(NewcastleDiseaseVirus,NDV) 引起的极易传染的毁灭性疾病. Newcastle disease ( ND ) is regarded worldwide as one of the most devastating diseases of poultry.
There occours needle - type or M - type martensite precipitation within retained austenite.残余奥氏体内有针状或“M”型马氏体析出.These lath martensite first nucleates in parent austenite intergranular and twin boundary.应变诱发马氏体首先在原奥氏体晶界和孪晶...
The beautiful garden was edged with flowering trees.那个美丽的花园四周围有开花的树木。Possibility of obtaining earlier flowering of liverleaf Hepatica nobilis schreb.克罗地亚研究获取早花獐耳细辛的可能性....flowering shrubs.开花灌木He may be happy with the flo...
诊断学(diagnostics)一词源于希腊文,意指鉴别 、 确定.Diagnostics is a word of Greece origin , which means discriminating, specifying.CT与 X 线透视, 超声, 同位素等影象显示方法相结合,建立起影像诊断学.CT and X - ray, ultrasound, isotope and other image display method c...
I actually skated, and despite some teetering I did not fall on the ice...我真的滑冰了——尽管有些踉跄，但没有跌跟头。He skated a figure of eight in the rink.他在溜冰场上溜了个八字形.I had skated on thin ice and, so far, got away with it.我曾经冒过很大风险，但目前为止侥...
The river was embanked with a dyke.这条河修筑有堤坝.In Shanghai Volkswagen Automobile Testing Yard, a lot of subgrades 6~14 m are embanked on the softground.上海市大众汽车公司新建试车场,部分专用路基高达6～14m,出于测试汽车性能的需要, 对路基的工后沉降提出了高标准的要求....