发生率

Using stereomicroscope, we observed the fracture line direction and location as well as the angle between the fracture line and the attrite plane. The data was compiled into statistics and analyzed. The results revealed that most of the vertical root fractures occurred in teeth with severe attrite crown and flat root. Numerous bucco-lingual oriented fractures occurred in the mesial root of molars, and we found three non-endodontically treated cases with mesio-distal oriented fractures in the palatal roots.

结果发现，两组的垂直牙根断裂均好发於牙冠严重磨耗（77.4-88.2%）且扁平的牙根（61.8-75.8%）上，以大臼齿的近心牙根发生率最高（64-85.7%），多为颊舌侧走向（91.2-91.9%），且於未根管治疗组别亦发现三例腭侧根断裂，走向为较宽的近远心方向，显示牙根断裂会沿著牙根较宽的方向发生；同时，未经根管治疗而产生垂直牙根断裂的牙齿具有根叉位置较低的现象（61.8%），牙根於比例上有较短小的特徵。

Autografting veins are widely used in bypass grafting in treating coronary artery obstructions and peripheral arterial diseases, though the occurrence ratios of restenosis in five years and in ten years are high to 30% and 50%.

自体静脉移植广泛用于旁路搭桥手术，用来治疗闭塞性冠状动脉和周围动脉疾病，但其5年和10年再狭窄发生率分别高达30％和50％。

Objectivc To observe spontaneous pathologic change in main organs of conventional and specific pathogen free rats, to provide necessary and important base of raising environment affecting autopathy in test animels, and to get the message of the statue of autopathy in current laboratories, to provide spontaneous pathologic change type and incidence of it for pathologic diagnosis in SPF rats.

目的观察普通级及SPF级正常大鼠主要脏器病理切片，为实验动物饲养环境对动物自身疾病的影响提供重要依据，同时了解目前实验室内动物自发病状况，为病理诊断提供SPF级饲养大鼠自发病组织学改变类型及发生率。

Results The incidence of SBP in patients with Hepatocirrhosis was 39.6%. The Gram negative bacilli were bacteria.

结果 肝硬化合并SBP的发生率为39.6%，致病菌为革兰阴性G

The prevalence of BT in patients with cirrhosis is 10.3%;Bilirubinemia is the risk factor of BT;BT can increase infection rate after liver transplant.

结论BT在肝硬化病人中的发生率为10.3%，发生BT的细菌主要是肠道内的革兰氏阴性兼性厌氧菌，高胆红素血症是促发BT的危险因素，发生BT的肝移植病人术后感染的风险增加。

The oral condition of bimaxillary protrusion, open bite, and vertical stop loss were more common in suspect TMD patients than in non-TMD patients.

就口内情形而言，在两颔前突、开咬、后牙支持丧失等三项，怀疑患有TMD者之发生率，均略高於无TMD者。

After com bination of KMA with Pr of higher dose,the incidence of proarrhythmia was increa sed.

较大剂量Pr 有致心律失常作用，KMA与Pr联合使用心律失常发生率增加。

Blood lead level of children aged 0-6 year old has been predicted using biodynamic model.

应用铅的生物动力学模型预测长春市儿童铅中毒发生率是6.4%，应引起有关部门高度重视。

During hot water treatment to bivoltine races, the temperature effect on rate of asexual developed eggs was more significant than that of soaking time.

以我国家蚕二化性现行品种为材料所进行的诱导条件优化研究，首次探明了温汤处理时温度对无性繁殖发生率的影响效应显著超过处理时间。

Results It was found that the incidence of Blastomyces albicans infection tended to decline and the proportion of non-Blastomyces albicans infection tended to rise. The higher incidence was associated with advanced age, coexistence of basic diseases and the use of antibiotics, glucocorticoids, etc.

结果 白色念珠菌感染呈下降趋势，而非白色念珠菌比例升高；高龄、存在基础疾病以及应用抗生素、糖皮质激素等患者下呼吸道真菌感染发生率高。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。