This paper using sphericity sound source and Y- 7 fuselage acoustic testing facility as research object in order to simulate airplane engine operating on ground in the semi-ane- choic chamber,analyze different reflecting surface corresponding different place where the engine setting and effect of noise source s acoustic.
在半消声室内以球形声源和"运七"声学试验平台为对象,模拟飞机发动机地面开车状态噪声源测试过程中机身表面对噪声源特性的影响,分析不同的反射面即对应不同的发动机位置,对噪声源声学特性的影响。
The development of biological test,diagnostic techniques of serology and molecular biology for foot and mouth disease(FMD) was summarized in this paper.
概述了口蹄疫的生物学试验、血清学诊断技术与分子生物学诊断技术。
The progression and application of biological test,diagnostic techniques of serology and molecular biology for foot and mouth disease(FMD) were summarized in this paper.
从生物学试验、血清学诊断技术和分子生物学检测技术等方面概述了目前口蹄疫检测技术的研究进展及其应用。
Study of Designing Principle of Biological Experiment and Common Designing Methods;
生物学试验设计原理及常用设计方法研究
Biological Experiment Test Items of Entrance Examination to University and Foster Students Ability of Biological Experiment;
高考生物学实验试题与学生实验能力培养
Experimental research of multi media teaching in exercise biochemistry;
运动生物化学多媒体组合教学的试验
Biological Characteristics and Cultivation of Pholiota Lubrica(Per.:Fr)Singer;
粘皮环锈伞的生物学特性与栽培试验
Study on the Biological Characteristics of Eupatorium coelestinum L and Its Control Countermeasures
紫茎泽兰生物学特性研究及除治试验
The Attempt on Experimental Teaching Reform of Medical Cell Biology and Genetics
医学细胞生物学与遗传学实验教学改革的尝试
Study on Biology, Ecology and Control of Apriona.germari(Hope);
杨树粒肩天牛生物学、生态学特性及防治试验
Experiences of Teaching Experiment of Graduate Molecular Biology;
硕士研究生分子生物学实验教学改革尝试
Test of Biomechanics Properties on Stalk Crops for Designing Agricultural Machineries
与机具设计相关的作物茎秆生物力学性质试验
chronic toxicity test for aquatic organism
水生生物慢性毒性试验
acute toxicity test for aquatic organism
水生生物急性毒性试验
Study on the Biological-Chemical Process for the Nightsoil Wastewater Treatment;
生物—化学工艺处理粪便污水生产性试验研究
On the Requirements of Physics Demonstration Experiments by Normal University s Students in Middle Schools;
试谈高师学生的中学物理演示实验的要求
A TRY TO PROMOTE BIOLOGY EXPERIMENT CLASS TEACHING OF TEACHERS COLLEGE BY POTERITIAL SCIENCE THINKING;
用潜科学思想促进高师生物实验课教学的尝试
Study on the Model Test of Chemical/Biological Deodorization in Municipal Wastewater Treatment Plant;
城市污水处理厂化学/生物除臭模型试验研究
Tablegrapes Contrast Experiments and Boilogy Characteristic Research;
鲜食葡萄品种对比试验及生物学特性研究
A Development of A New Intervertebral Disc Implant:The Design and The Biomechanical Study;
活动式颈椎融合器的研制——设计与生物力学试验
Investigation on Biological Charactetistics and the Fruit Bagging of Early Ripening Pear Cultivars;
早熟梨品种生物学特性调查及套袋试验研究