您要查找的是不是：
- Earthquakes occur frequently in Japan. 日本时常发生地震。
- Claims occur frequently in international trade. 国际贸易中经常发生索赔现象。
- But pulmonary disease occur frequently after HSCT. 但HSCT术后肺部并发症时常发生。
- Earthquakes occur frequently in this area. 这一地区经常发生地震。
- Collapse occurred frequently in the Tianchi Lake area of Changbaishan Mountain. 摘要长白山天池地区崩塌灾害频频发生。
- Deadly infectious diseases such as smallpox and the plague occurred frequently and even ran rampant. 天花、鼠疫等烈性传染病屡有发生和流行。
- Occurring frequently or habitually; usual. 通常的经常地或习惯地出现的；通常的
- Lured by the high profits,colliery accident has occurred frequently,but also growing. 在高利润的诱惑下,煤矿事故频繁发生,而且愈演愈烈。
- Paederus dermatitis is occurred frequently in the countryside in the warmer tropical climates. 摘要隐翅虫所造成的皮肤炎，常见于夏季时乡村地区。
- The results show that the dominant types in winter are N and NW types. C,CSW and SW types occur frequently in summer. 结果表明:哈尔滨冬季以N,NW型为主,夏季以C,CSW和SW型为主。
- Because of this, different types of natural disasters occur frequently with obvious seasonality and regionality. 发生频繁；具有明显的季节性；具有很强的地域性等特点。
- Because of this,different types of natural disasters occur frequently with obvious seasonality and regionality. 发生频繁;具有明显的季节性;具有很强的地域性等特点。
- Scientists were unsure what set off the avalanches and whether they occur frequently or only during the spring. 科学家还不清楚是什么引发了雪崩，以及这些雪崩是经常发生还是仅在春季发生。
- Objective To investigate the incidence and the risk factors of nosocomial infection in a surgical ICU (SICU) where infections occurred frequently. 摘要目的针对某外科重症监护室(SICU)频繁发生医院感染的情况，开展目标性监测，以了解其感染情况和危险因素，提出控制措施。
- The locally strong convective weather such as thunder rain and heavy wind as well as hailstone and lightning strike occurred frequently. 雷雨大风、冰雹、雷击等局地强对流天气发生频繁。
- In the DCS system of Douhe Power Plant through transformation,some typical faults of DEH system occurred frequently since commissioning. 陡河发电厂的机组在经过DCS改造以后,新装的纯电调系统在投入运行后出现了一些典型的故障。
- With the speed increase this year, locomotive wobbling occurred frequently due to side abrasion of straight rails at switch point. 随着线路的再次提速,因固定型提速道岔转辙部位直股钢轨侧磨而多次引发机车摇晃。
- School accidents occur frequently and unexpectedly, which makes schools in a passive and awkward situation in coping with the aftermath. 学校事故日益增多,防不胜防,而在事故的处理过程中,学校又处于被动和难堪的境地。
- Why channel siltation occurs frequently in Jiujiang Section of the Yangtze? 长江九江段为何屡屡梗阻?
- Noise words are those words such as "a," "and," "is," or "the," which can occur frequently but do not really help when searching for specific text. 干扰词是指那些可能经常出现但是在搜索特定文本时没有实际帮助的词,如“a”、“and”、“is”或“the”。
