1病因由于淋雨受寒感冒,过劳使役,牛的机体抵抗力下降,受到病毒侵害。2临床症状精神沉郁,头低耳耷,停食,反刍停止,呼吸困难,呼气长,吸气短,体温上升至40℃,排粪减少,粪便稀而
A set of metallic specimens containing fatigue cracks with different sizes were tested using eddy current pulsed thermography(ECPT),therefore the relations betw
自唐太宗贞观四年(公元630年)朝廷下诏书,全国建了很多孔庙(又称文庙)。但作为孔氏家庙,人说仅山东曲阜和浙江衢州两处。因此,曲阜谓之“孔氏北宗”,衢州谓之“孔氏南宗”。
<正>从小因病致残的吴中余是利川人,经历过达到分数线却未被学校录取,就近上班却因改茧而下岗,面对困境,他没有因为身体残疾而怨天尤人,为解决温饱,开店、收废品……做过很多
慢性支气管炎,临床发病率高,对人类的健康威胁很大,我们自1993年以来,在借鉴"冬病夏治"有关方法的基础上,采用综合外治法,对234例慢性支气管炎患者按中医辨证,分型论治,疗效
现阶段,随着人们对于牛肉需求的不断增长,越来越多的养殖户参与到牛养殖当中。在养殖的过程当中,极易受到疾病的困扰。在这其中,牛支气管炎和支气管肺炎较为常见。基于此,本
In many wireless sensor networks(WSNs)applications,the preservation of source-location privacy plays a critical role in concealing context information,otherwise
The current research on gas film is mainly in various precision instruments and machinery while the studies on gas film in ultrasonic motor is few.Based on orig
A novel fiber temperature sensor based on multimode interference theory is proposed and experimentally demonstrated.The sensing head is formed by a fiber bragg
为了保证程序代码在黑盒测试环境下能够更好地运行,需要对执行测试用例优先级方法进行改进调整。该文对比分析了用于黑盒测试中的测试用例优先级算法和改进算法,将错误检测率