查询词典 blockage

Therefore, in practice, paper strength of the surface of the paper are also called anti-dropping anti-blockage.

所以，在实际应用中，纸张的表面强度也叫做纸张的掉毛抗阻。

objective to evaluate clinical effect of the handling protaper nickel-titanium rotary instruments in preparation of canals of posterior teeth.methods 96teeth with pulpitis or periapical periodontitis were instrumented by handling protaper rotary instruments using step-down technique,and by k files using step-back technique for control.all teeth were obturated with lateral condensation methods.the efficiency of preparation was analyzed with ra-diographs before and after operation.results no transportation,apical blockage and ledge were found in test.the technique could keep canals smooth.there were two ledge,one instrument fracture and nine transportation in control.the operative time was shorter and post treatment pain seldom occurred in handling protaper group.conclusion the handling protaper niti rotary instruments can prepare the canals effectively and safety.after the preparation,the canals could be easily washed,sterilized and filled.it is an efficient instrumentation method for posterior teeth's canals and be used widely.

目的 评价手用protaper预备后牙根管的临床效果。方法选取患有牙髓炎和根尖周炎的后牙96例，随机分成试验组和对照组各48例，试验组用手用protaper多锥度镍钛旋转器械逐步伸入法预备根管，对照组用k锉，逐步后退法预备根管，两组均用侧向加压充填法充填根管，根据治疗前后的x线片，评价后牙根管预备效果。结果试验组无根管偏移、根尖阻塞、台阶，且根管壁平滑流畅，无器械折断等并发症发生。对照组有2例台阶形成，器械折断1例，根管偏移9例。试验组操作时间短且术后疼痛轻微。结论应用手用protaper预备后牙根管快速、安全，成形效果好，易于根管冲洗消毒及填充，可视为临床上预备后牙根管的有效方法。

Furthermore, according to the rules of the runway blockage, an important judging index, the probability of the flying-off or put-down of the airplane, is offered in order to estimate the damage degree of the airfield accurately.

按照机场跑道封锁的准则，引入飞机可起降的概率，进行机场跑道毁伤程度的精确评估，为打击效果评估结果的量化提供了一个重要的衡量指标。

During the process of a second removal of ice blockage,a fire accident occurred due to the leakage of oil and gas from the sealed auger and the attritional fire caused by a blunt drill head,Two technicians were seriously injured and many p.

分析这次管线排堵钻孔意外失火事故发生的原因：一是钻孔人员对油气的危害认识不足，未及时给予清除；二是思想麻痹，未及时刃磨变钝的钻头；三是消防灭火措施不力。

He is the most remarkable man that I have ever known.

他是我知道的人中最值得注意的人。

Increased appearance of lymphocele was noticed in patients with diabetic nephropathy, congenital malformations of the urinary tract, and inflammatory diseases, including glomerulopathy and extraglomerular ones, after high-voltage radiotherapy and after removal of the renal graft.

经过高压放射疗法和切除移植肾后，在糖尿病肾病患者、泌尿系统先天性畸形患者和炎症患者身上发现淋巴囊肿有所增加，包括肾小球病和球外疾病等。