试验设计

In a 4×4 latin square design four steers (500±50) kg with permanent rumen and abomasum cannulae were fed on the different type of diets to study the effects of fiber digestion and VFA in the rumen on the methane production.

装有瘤胃和真胃瘘管的成年阉牛4头，体重（500±50）kg，采用4×4完全拉丁方试验设计，在呼吸代谢室内就不同日粮的纤维消化、瘤胃内VFA对甲烷产生量的影响进行了研究。

Student need master theory andtechnique of botany, plant taxology, plant physiology, plant ecology, agrology, plant nutrition and fertilizer, agriculture aerography, forage and feed breeding, livestock thremmatology, statistics and so on.

在此基础上，尚需掌握植物学、植物分类学、植物生理学、植物生态学、土壤学、植物营养与肥料学、农业气象学、杂草与病虫害防治学、牧草饲料作物遗传育种学、家畜饲养学、田间试验设计与数理统计分析等学科的理论和技术。

They were fed with for four additional levels of β-carotene which was 0, 25 mg/kg, 50 mg/kg, 100 mg/kg (air-dry matter of the dietary) within 6 months.

选取20头荷斯坦种公牛，单因子试验设计，随机分为4组，分别饲喂β-胡萝卜素添加水平0、25、50、100 mg/kg的日粮，试验期为6个月。

Taking the ampelopsis as the raw material,under the condition that ethanol soaks to prepare the processing,taking water as the associated extract dihydromyrictin.

以干藤茶叶为原料，采用乙醇浸泡进行预处理，以水为溶剂提取二氢杨梅素，考察了乙醇预处理时间、茶叶与乙醇的料液比、加热时间等因素对提取率的影响，通过单因素分析和正交试验设计，确定了最佳提取工艺条件。

Effects of explants,2,4-D,6-BA,NAA and AgNO3 on inducing buds were studied in pineapple(Ananas comosus cv.Hawaii) by using orthogonal design.

采用菠萝试管苗的叶片、叶鞘、茎段和茎薄片作外植体，以MS或1/2 MS为基本培养基，应用正交试验设计方法研究了不同浓度的2，4-D、6-BA、NAA和AgNO3对夏威夷菠萝不定芽的诱导效果，并在添加不同激素组合的培养基中进行芽的增殖和生根培养研究。

The production technology of the auricularia auricula and jujube ice cream were studied by means of orthogonal experiment design.

以黑木耳、红枣为主要原料，运用正交试验设计对黑木耳红枣冰淇淋的加工进行研究。

Build a CAD valve design center and three-dimensional simulation test system design and manufacturing ensures the quality of the new product development and speed.

集团建立CAD阀门设计中心及三维立体模拟制造试验设计系统，保证了新产品开发的质量和速度。

Design and optimize HSC of fine sand and pebbles with Dn-'s optimum design,explore the internal law between water-bond ratio,the amount of super fine slag powder,sand rate and properties of HSC,and build the corresponding mathematical model.

用Dn 最优设计的方法试验设计并优化配制了细砂、卵石高强混凝土，探索了细砂卵石混凝土中水胶比、磨细矿渣粉掺量、砂率与高强混凝土性能之间的内在规律，并建立了相应的数学模型。

Themultiple correlated coefficient of mathematical model was 0.951,which showed that the experimental designmethod is feasible in study self-thinning of forest.

尝试将二次正交旋转组合设计方法应用于杉木林自疏规律研究，建立重要环境因子与密度变化间的统计模型，并进行统计分析，表明采用试验设计方法研究森林自疏是适用的，其复相关系数为0.951。

Topics include: effects of gravity on the muscle, skeletal, cardiovascular, and neurovestibular systems; human/pilot modeling and human/machine design; flight experiment design; and life support engineering for extravehicular activity.

主题包括：地心引力对肌肉、骨骼、心脏血管、神经系统的影响；人类飞行员建模和人类机械设计；飞行试验设计；太空船外活动的生命维系工程。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。