Recently, piracy happened frequently and took on a rising tendency.
近几年来，海盗犯罪案件频繁发生，而且有逐年上升的趋势。
The results show that the state of the common acid rain happened frequently.
结果表明，本地的一般酸雨出现较为频繁；
Because of adverse environment, operating mechanism failure happened frequently.
由于其作业环境恶劣，工作机构极易发生故障。
Such cathartic moments happened frequently during Insight training sessions, according to Allen.
按艾伦的说法，这种个人宣泄式的场面经常出现在真知的培训课上。
Accidents happened frequently in the carriage of dangerous goods by sea, most of which were caused by the fault of shippers.
海上危险货物运输事故频频发生，多数由托运人过错引起。
In recent years, food safety incidents happened frequently in home and abroad, safety has also become the focus of attention.
近年来国内外食品安全事件频发，食品质量安全也成为社会关注的焦点。
Adverse medical events and medical errors happened frequently, which call for the establishment of perfect patient safety system.
频发的医疗不良事件和医疗错误呼唤健全的病人安全体系。
Adverse medical events and medical errors happened frequently, which call for the establishment of a perfect patient safety system.
频发的医疗不良事件和医疗错误呼唤健全的病人安全体系。
Results sleep apnea events were found in each different sleep stage. The events happened frequently in light sleep stage, most in stage 2.
结果睡眠呼吸暂停事件在睡眠各期均可出现，但多见于浅睡眠期，以2期最明显。
Due to low soil strength, high underground water level and strong soil plasticity flow, unstability accidents happened frequently in soft soil area.
软土地区由于土体强度低，地下水位高，流塑性强，基坑失稳事故频发。
Results The main departments with nosocomial infection caused by PA happened frequently were intensive care units (23. 8%) and respiration department (20. 6%).
结果铜绿假单胞菌感染主要发生在重症监护病房（23.8％）和呼吸内科（20.6％）；
In recent years, connected guarantee behaviors of listed companies have happened frequently and the guarantee amount is large which involved enormous financial risk.
几年来，上市公司的关联担保行为频繁发生，涉及金额大，其中蕴涵了巨大的财务风险。
High-pressure feedwater pump is one of the important auxiliary equipment of power unit. Its vibration problem happened frequently has seriously influenced the safety running of power unit.
高压给水泵组是发电机组的重要辅机设备，振动引起故障的发生率高，严重影响机组的安全运行。
Nowadays it still exists extensively, and recently, closing down of Chinese Money-loan Associations has happened frequently in many areas of China, and draws the attention of researchers again.
在当代中国依然广泛存在，最近频繁发生于各地的“倒会”又重新引起研究者的关注。
The "previous" experience is most frequently attributed to a dream, although in some cases there is a firm sense that the experience has genuinely happened in the past.
那些“以前”的经历多数都来自于梦境，不过有些时候我们都会坚信这个经历真的发生过。
这也是常有的事。
It turns out that XFS 1.0.x had the unfortunate tendency of frequently mangling recently modified files if your server happened to crash or unexpectedly lose power.
事实证明，如果您的服务器碰巧崩溃或者意外断电，XFS 1.0 . x有一种很不好的倾向，那就是会破坏最近修改过的文件。
Earthquakes happened pretty frequently there and so do volcanic eruptions.
地震发生相当频繁，所以经常会有火山喷发。
As a sidenote, I use this trick frequently: if I'm not sure about my reaction to some event, I imagine someone describing the situation to me as if it happened to a stranger.
旁注，我经常用这个技巧：如果我不知道对某个事的反映，我会想象自己是一个在给自己描述仿佛发生在陌生人身上的事情。
Safety problems have been happened so frequently because of imperfect technological standards, industry management system and confused market competition sequence in dairy industry.
我国乳业由于技术标准、行业管理制度等尚不完善，市场竞争秩序混乱，乳品安全问题频繁发生。
According to the sudden-break accidents that frequently happened in telecommunication cable, a new design project of cable Auto-locating System is proposed.
针对频繁发生的电信电缆中断事故问题，提出了一种电缆故障自动定位系统的设计方案。
Chromosome reductional grouping happened more frequently in polyploid cells.
染色体减数分组较多发生于多倍体细胞中。
Ore pass is extensively used in underground mining, but frequently troubles or stoppages are happened and up to now there is no quite satisfactory way to clear them.
溜井广泛用于矿山井下开采。经常发生的溜井堵塞故障，至今还没有妥善的处理办法。
Ore pass is extensively used in underground mining, but frequently troubles or stoppages are happened and up to now there is no quite satisfactory way to clear them.
溜井广泛用于矿山井下开采。经常发生的溜井堵塞故障，至今还没有妥善的处理办法。
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