使用周期

60Coγ刀治疗源是γ刀治疗设备的核心部件，具有活性区小，比活度高，半影区小，聚焦成形好，使用周期长等特点。

Co γ gamma knife source is a kernel unit of γ knife therapy equipment . It has small active core , high specific actvity , narrow half dark area , best focus form , long use period .

介绍了CKD重负荷工业齿轮油在冶金行业减速齿轮箱的应用情况，国产CKD重负荷工业齿轮油可以代替进口油，使用周期超过1年。

The application of CKD heavy - duty industrial gear oil on reduction gearbox is introduced in metallurgical industry , the service period of domestic CKD heavy - duty industrial gear oil , which can replace the imported oil exceeds a year .

如今电子垃圾的数量以指数方式增长。电视平均的使用周期不到两年，电脑的平均使用周期是三年。

Electronics waste is growing exponentially . Televisions are used on average for less than two years . For computers , it 's three .

在频域分别对比使用周期图法和AR模型法分析心率变异信号96功率谱密度。给出了分析实例，并说明了AR模型的优点及实用性。

Then the PSD ( Power Spectrum Density ) of HRV is analyzed in frequency-domain using Periodograms and AR ( Autoregressive ) Models .

为了使爆胎充气点火引信的电源满足小型化、高能量密度和使用周期长等技术要求，以P！5A4为材料设计了一种压电陶瓷电源。

In order to meet the demand of the smart , high energy density and long lifetime for the burst blow ignition fuse , a type of piezoceramics power supply made of P-5A4 material is designed .

方法在显影液的一个使用周期中，用标准感光的样片，每3d测试一次自动洗片机不同显影温度时输出胶片的密度。

Methods During the using cycle of developer replenisher , the density of output film of the automatic processor was measured at different temperature using standard sensitive sample film per 3 days .

结果表明，复合有机胺类活性剂ST的加入可以在相对较长的时间内保持催化剂碱液的高催化活性，同时延长催化剂碱液的循环使用周期。

The experimental results demonstrated that adding organic amine ST like complex could effectively improve the catalyst stability , keeping high activity and prolonging running cycle .

结果表明，三维模拟时晶粒取向数Q取200是比较合适的；模拟模型使用周期性边界条件，晶格点阵尺度对其模拟结果的影响不大。

It is shown that the appropriate grain orientation number of three-dimensional simulation is 200 . Owing to the boundary conditions of simulation model is periodical , the influence of lattice size is small .

本课题采用基于FPGA的SOPC技术设计网络税控器，则能够达到很高的灵活性，避免了设计过时的风险，大大提高了设备的使用周期。

The subject of FPGA-based SOPC design network technology tax control device , you can achieve high flexibility and avoid the risk of outdated design , greatly improving the equipment life cycle .

Dropbox的“付费消费”模式与用户的使用周期完美互补。用户到达存储上限后，就会逐步进行自然转换。

Dropbox 's " pay-for-consumption " model perfectly complements the lifecycle of its users , who eventually reach a natural conversion point upon reaching their storage limits .

个人电脑使用周期延长，再加上智能手机和平板电脑带来的竞争，大大抑制消了消费者对PC的需求。据IDC数据显示，全球各地区的电脑出货量均连续5个季度出现下滑。

PC demand has been hit by competition from smartphones and tablets , along with longer lifecycles for PCs. Shipments fell in all regions around the world and have declined for five quarters in a row , according to IDC 's figures .

φ3.2m×4.5m球磨机金属磁性衬板使用周期10年实践总结

Summary of Practice of Ten Years ' Service Life of Metal Magnetic Lining on A φ 3.2 m × 4.5 m Ball Mill

阐述了研磨、离心、静置、过滤等TiO2调制过程优化后，产品中凝聚粒子含量明显下降，二氧化钛过滤器使用周期明显延长。

According to the practical production experiences , the optimization of TiO_2 preparation process are expounded from grinding , centrifugalization , deposition to filtration . The agglomeration particle content in the product is obviously decreased , the lifetime of the TiO_2 filter is obviously prolonged .

最后，在使用周期通信序列的基础上，将系统转化为周期系统，利用LQG方法设计了系统的最优控制器，通过动态规划的方法，给出了最优控制增益的参数化表示。

Finally , under the periodic communication sequences , the NCS is transferred to a periodic system . Then a LQG controller is designed . The sufficient conditions for the existence of an optimal controller are obtained in terms of dynamic programming solution .

介绍了4638高清洁度抗磨液压油在打包机液压系统中的应用，4638的使用周期超过8000h，可替代SHELLTELLUS46液压油，节约了采购费用。

The application of high-cleanliness anti-wear hydraulic oil 4638 on packager hydraulic system is introduced . Once the service period of 4638 is over 8000 h , it can replace the SHELL TELLUS 46 hydraulic oil , and the purchase cost can be saved .

与进口油相比，RF-2挥发性冲压油提高了铝翅片的合格率，延长了模具的使用周期。

Comparing with imported oil , the RF-2 volatilizing punching oil increases the acceptance rate of aluminum fin - stock , and extends the service period of die .

租赁期间覆盖租赁物使用周期的实质部分。

Lease period almost is the same as equipment 's lifecycle .

氯甲烷干燥塔的干燥及其使用周期的探讨

Discussion for Operation Cycle and Drying of Methyl Chloride Drying Tower

这一作用单一的杀虫剂极大的增强了杀虫剂的有效使用周期。

This alone would greatly enhance the useful life span of an insecticide .

延长熔体过滤器使用周期的技术探讨

Study on prolongation of operation cycle for polyester filter

有效提高设备利用率，延长设备使用周期；

Efficiently utilizing equipments to prolong their service life ;

超群的高温氧化安定性，保证机油超长的使用周期。

Outstanding high-temperature oxidation stability , guarantee machine oil ultra long use cycle .

延长窑用耐火材料使用周期的措施

Measures to prolong lifetime of kiln refractory materials

采用封层类的技术，耐久性较差，使用周期短。

Adopt sealing layer class technology , durability is poorer , use short cycle .

使用周期性的培训，帮助学员完成高性能的关键比赛。

We use Periodized Training to help each reach peak performance for key tournament .

醋酸装置催化剂循环使用周期短的原因及对策

Reasons and Countermeasures of Short Period of Catalyst Circulation in the Acetic Acid Production Device

胶辊经磨砺后的表面状况，直接影响纺纱质量的优劣、使用周期的长短和纺纱成本的高低。

Grounded cots are a direct factor on yarn quality , cot service life and yarn cost .

使用周期性边界条件以减小有限大格子空间带来的系统误差；

Periodic boundary conditions were used to reduce the fixed error from limited cubic lattice in size .

一套新材质轧辊比原轧辊在相同使用周期内提高产量达176.5吨。

A set of new roll can increase the rolling productivity by176.5tons within the same service cycle .

采用加载技术对普通频率选择表面进行了改进，同时使用周期矩量法对它的特性进行了分析。

A new loaded frequency selective surface ( FSS ) was introduced and analyzed by period method of moment .