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Study on improving performance of airlift device by self-excited oscillation pulsed jet used in mini
The feasibility of the nozzle of self-excited oscillation pulsed jet (SEOPJ) as the breaker and loosing device for the a......
This study was performed on two groups (81 cows) of primi-parous Holstein cattle (av.BW 258 ± 90 kg) which were divided......
,Study on improving performance of airlift device by self-excited oscillation pulsed jet used in min
The feasibility of the nozzle of self-excited oscillation pulsed jet (SEOPJ) as the breaker and loosing device for the a......
为了迎合市场对保健功能针织产品的需求,对海藻纤维及海藻纤维-棉(50/50)混纺纱的基本性能进行了测试.分别采用傅里叶红外光谱仪和......
[目的]探究蛋氨基酸锰对蛋鸡生产性能的影响。[方法]将25周龄的商品蛋鸡400只随机分成5组,待分组产蛋稳定后,在饲料中分别添加0、2......
<正> The feasibility of the nozzle of self-excited oscillation pulsed jet (SEOPJ) as the breaker and loosing device for ......
针对石油化工企业中存在的只考虑装配尺寸，而将同一类气阀用于不同岗位，压缩不同气体但阀腔装配尺寸相同的压缩机上的现象，通过分析和......
本报告对阿旺绵羊进行种质资源调查,测定其生理生化指标,羊毛品质、体尺体重等生产性能指标,并与江达绵羊、左贡绵羊进行比较。结......
以钙基蒙脱石为原料，经钠化后与十八烷基三甲基氯化铵进行离子交换反应，合成蒙脱石有机络合物。考察了反应温度、反应时间、改性剂用......
观测了西宁华青蛋禽公司肉鸡场ＡＡ父母代种鸡的生产性能。结果表明，雏鸡成活率为９６．７５％，育成期成活率９７．２１％，产蛋期成活率８２．５３％，饲养日平均产蛋率５１．７２％，产蛋高峰产......
对美、匈两个系群的杜洛克猪适应性和生产性能进行了系统测定(与长白猪对照),取得以下主要研究结果:1.杜洛克猪基本适应四川不同地......
