断裂的

Objective To examine whether transesophageal echocardiography is better than transthoracic echocardiography in the detection of partially ruptured mitral chordae tendineae.

目的 比较经胸超声心动图及经食管超声心动图对二尖瓣腱索部分断裂的诊断价值，探讨TEE对该病的探测方法及其声像学特征。

A major concern with use of nickel-titanium engine-driven rotary instruments is fracture without warning.

中文摘要镍钛根管锉在使用上有减低医师手部疲劳及克服弯曲根管的优点，但是无法克服器械断裂的缺点。

This thesis is concerned with studies on the ring opening reaction catalyzed by gold catalysis via carbon-carbon bond cleavages.

本文主要研究了金催化碳碳键断裂的开环反应，全文共分为三个部分：第一章：对均相金催化研究进行了总结，综述了均相金催化的研究进展。

This paper expounded the importance of the vanes to the safety and reliability of operation of the 50 MW extraction condensing steam turbine.

阐明了50 MW抽汽冷凝式汽轮机转子动叶片对汽轮机组安全稳定运行的重要性，分析了引起汽轮机叶片断裂的多种原因。

Methods Forty patients with ACL rupture underwent arthroscopic ACL reconstruction with autografts of four-stranded hamstring tendon using Rigidfix and Intrafix system fixation, Systematic rehabilitation was conducted post-operatively.

2004年6月至2007年10月，40例ACL断裂的患者均在关节镜下采用4股腘绳肌肌腱单束重建ACL，股骨端移植物应用Rigidfix系统固定，胫骨端移植物应用Intrafix系统固定，术后进行系统的康复治疗。

Photo Gallery: Rocks Oozing lava acts as a seal over fractured ground in Hawaii Volcanoes National Park.

渗漏的熔岩运行就像一个印章越过断裂的土地在夏威夷火山国家公园。

Oozing lava acts as a seal over fractured ground in Hawaii Volcanoes National Park.

渗漏的熔岩运行就像一个印章越过断裂的土地在夏威夷火山国家公园。

In this paper,the brittle fracture probability of weldments and the fracture toughness of heat affected zone were investigated according to the principle of the weakest link theory.

从最弱链模型的物理本质出发，探讨了影响焊接热影响区脆性断裂的主要因素。

According to the test results obtained from Olympic Park, Beijing, Shandong Province, Gansu Province and Shanxi Province, we have generalized the method and process for inferring the discontinuity of electrical structure reflecting a buried fault in urban areas from resistivity tomograms and its typical electrical features.

根据在北京奥运村、山东、甘肃和山西等地的试验探测结果，总结了利用电成像结果推断反映城市浅层隐伏断裂的电性结构间断面的方法、步骤及其典型表现形式。

The identification and position of fracture in the main pancreatic duct is also the key to successful treatment.

而主胰管断裂的识别和定位也是治疗成功的关键。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。