您要查找的是不是：
- A severe, extended period of decline in business activity. 商业活动严重减少并且长时间没有好转。
- The child has received formal education over an extended period. 这孩子接受过长期的正规教育。
- The connection has not been used for an extended period of time. 连接太长时间没有使用。
- Should log out when leaving a workstation for an extended period. 为某一延伸阶段而离开工作站时应退出（系统）。
- Due to the fact, that the 800V quasi resonant flyback has lower peak current, its spectrum is significantly lower across almost complete frequency range. 事实上，800伏特准谐振反激变换器拥有更低的峰值电流，它的频谱意味着在全频带有更低的幅值。
- The difference between a hard switching and quasi resonant flyback converter is the turn on time point of the primary switch. 硬开关和准谐振反激变换器之间的差异在于一次侧开关的开启时间点。
- As it can be seen the voltage spectrum of the 800V quasi resonant flyback is higher at frequencies below 1 MHz, and is getting lower above 1 MHz compared to both 600V designs. 和600伏特设计比较，800伏特准谐振反激变换器的电压频谱在1兆赫兹以下更高一点，在1兆赫兹以上开始变小。
- The key agreement key is static, existing for an extended period of time. 密钥协商密钥是静态的,在延长的时期内存在。
- After an extended period of game testing, AXA has produced the following guide. 在测试的一比赛的延长期之后，安盛生产下列向导。
- Only very few people can go without an income for an extended period. 只有极少数人可以去，没有收入的一个较长时期内。
- The 800V quasi resonant design with lower current peak and lower drain-source voltage during turning on of the MOSFET demonstrates advantages in conducted EMI spectra regarding the primary side. 拥有更低峰值电流和场效应晶体管漏源极开通电压的800伏特准谐振设计展示出一次侧传导电磁干扰降低的优势。
- The flyback converter running in discontinuous conduction mode can be operated in hard switching or quasi resonant (or valley switching, or ZVS) mode regarding the primary side switch. 电感电流断续工作的反激式变换器一次侧开关可工作于硬开关或准谐振（或谷值开关或零电压开关）模式。
- Timer must be disabled when graphing readings for extended periods. 当在观看较长周期的图形和读值时，必须关闭定时器。
- The blockage of the sun for an extended period would have caused global temperatures to plummet and photosynthesis to all but ceases. 阳光的长期遮挡将引起全球的气温剧降，而且光合作用将完全停止。
- Fair: Objectionable change in appearance due to discoloration or etch, possibly resulting in deterioration of function over an extended period of time. 一般：由于变色或腐蚀，外观有不雅改变。如果延长测试时间，有可能造成功能的毁损。
- The effects of guanethidine are cumulative over extended periods. 胍乙啶的作用是蓄积性的，且可维持较长时间。
- Such a method could take a relatively extended period of time to finish processing, depending on the input. 完成此类方法的处理所需的时间相对较长,具体取决于输入。
- Do not allow a repaired database to remain in production for an extended period of time. 不允许修复的数据库在产品中保持相当长的时间。
- This system ensures the reliable supply of lubricant to the unit over an extended period. 此装置可保证为轴承单元长期可靠地提供润滑剂。
- Unplug the system from the wall outlet if it is not to be used for an extended period of time. 准备长期不使用系统时,请自电源插座拔下系统的电源线。
