There are the relationship between elastic modulus and phase-speed and surface-displacement of Lamb wave.

A new damage localization method is proposed to locate lamb wave.

研究结果表明:本文提出的损伤定位方法能有效地确定出在复合材料中的损伤.

Studies on Frozen Embryo Transfer of Doper Sheep and Boer Goat

杜泊绵羊和波尔山羊冷冻胚胎移植效果的研究

Effect of different centrifugal speed on preservation effect of boer goat semen in low temperature

不同离心速率对波尔山羊精液低温保存效果的影响

The Variety Character and Utilization of Boer Goat

波尔山羊的品种特性及利用途径

A study of improving Chengdu Ma goat meat performance by applying Boer goat

应用波尔山羊提高成都麻羊产肉性能研究

Effects of Boer goat donor and service ram on the embryo transferring rate

供体母羊及与配公羊个体对波尔山羊胚胎移植效率的影响

The Breed Characteristics of Boer Goat& Physiological Characters and Blood Constituents

布尔（Boer）山羊种质特性的研究&生理常值及血液生理生化

Technology and Application Effect of Embry Transfer in Boer Goat

波尔山羊胚胎移植技术及应用效果研究

Crossing Effect of Boer Goat with Shanxi Local Goat

波尔山羊与山西本地山羊杂交改良效果研究

Experimental Studies on Boer Goat Semen Diluted for Many Times

波尔山羊精液高倍稀释试验研究

Effect of Nano-Selenium on Testicular Growth and Development in Boer Goat

纳米硒对性成熟前波尔山羊睾丸发育的影响

Study on Relationship between RAPD Markers and Meat Performance of Upgrading Offspring of Boer Goat

RAPD标记与波尔山羊杂交后代肉用性能的相关性研究

Study of germplasm using and matching technic of Boer goat

波尔山羊种质利用及配套技术研究

Study on Adaptability of Boer goat to East Hebei Province

波尔山羊在冀东地区适应性研究

Relation of Recipients Pregnant Rate and Embryos Transfer Quantity and Quality in Boer Goat

波尔山羊胚胎数量、质量与受体移植妊娠率的关系

But the number of Boer goat holds back the development of the meat goat industry.

而目前波尔山羊的数量尚少，发展太慢远远跟不上生产的需求。

Analysis of genetic diversity in Fujian local goat and Boer goat by using microsatellite markers

用微卫星标记分析福建地方山羊品种及波尔山羊的遗传多样性

Studies on energy and protein requirements of Boer goat embryo recipient during the later gestation

波尔山羊胚胎移植受体妊娠后期能量和蛋白质营养需要研究

Boer Goat Embryo Transfer with North Local Goats as Recipients in Spring

用北方本地羊作受体的波尔山羊春季胚胎移植试验

Studies on the Growth and Developmental Rules of Young Boer Goat

波尔山羊羔羊生长发育规律研究