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The bearings should be drained periodically, and if necessary, flushed with a light spindle oil and refilled with the recommended grade.

应按时将轴承内的旧油排出，若有需要可用稀薄的锭子油将轴承冲洗干净，然后注入适当的新油。

"On the full-vacuum-control distributor, the spark advance should be checked and adjusted, as necessary. The distributor should be lubricate d periodically."

必须对全真空控制分电器的点火提前装置进行检查和调整，分电器也应定期进行润滑保养。

Participants will be required to keep a sketch/note book which will be handed in periodically during the semester.

参与者将需要以素描簿或笔记本进行纪录，并将在学期中定期呈交。

This article use transfer matrix method to calculate dispersion relation and surface modes in semi-infinite periodically layered media.

本文使用传输矩阵法来计算半无限周期性层状材料之色散关系式和表面模态关系式。

Periodically to do compliance self-checking of daily processing, escalate according to acceptable risk threshold.

定期对日常操作进行合规性自查，根据可接受的风险程度逐级汇报。

The dynamic stability of a rotating electrorheological sandwich beam with periodically varying velocity is studied by using the method of multiple scales.

采用多尺度法对周期变速旋转运动电流变夹层梁的动力稳定性进行了研究。

This invention discloses an IC phone communication method based on the FSK mode including: loading and transmitting ciphered sequences, ciphered card information, called number information and other interaction information between an IC terminal and a process platform in the mode of FSK information, in which, the platform authenticates the authority and charges, if the deduction at the IC terminal is correct, then it sends signals of anti-stealing making phone calls periodically to the platform, which differentiates the correctness of the signals, if they are wrong, it releases the call, when the communication is finished and the calling rings off first, the platform receives the identification signals of the ring-off of the calling to cut off the call of the called side and release the voice channel between the platform and the called side, then processes balance information and releases the call finally.

本发明公开了一种基于频移键控方式的IC卡电话通信方法，其主要方案是IC卡终端与处理平台之间通过FSK信息方式承载和传输加密序列、加密卡信息、被叫号码信息及其它交互的信息，由处理平台进行鉴权和计费；如果IC卡终端扣费正确则周期性向处理平台发送防盗打信号，处理平台鉴别防盗打信号的正确性，如果错误则释放呼叫；当通信结束后主叫先挂机时，处理平台收到主叫挂机标识信号后首先切断被叫侧的呼叫，释放处理平台与被叫侧之间的话路，然后再进行余额信息的处理和最后释放呼叫。使用本发明提出的方法，使得IC卡终端与处理平台之间的信息交互流程更加简单、清晰，提高了信息交互效率，并能及时释放话路，节约中继资源。

The spectral characteristics of the device were measured by an optical spectrum analyzer in a set-up with fiber coupling. A periodically vibrated resonance spectrum was observed with 10 dB contrast and 0.182 nm period. According to the experimental data and the theoretical formula of the ring resonator, transmission loss of 1.7 dB/cm in the ring resonator was obtained.

利用光谱仪对器件的传输特性进行了测量，观测到具有10 dB对比度，自由光谱范围0.182 nm周期性谐振现象，结合环形谐振腔的传输特性，得到环形腔具有较低的传输损耗1.7 dB/cm。

Chemical treatment is carried out periodically, after a course of chemotherapy after a period of time to rest before the next treatment cycle.

化学治疗是周期性地进行，经过一次化学治疗疗程後会休息一段时间，然後再进入下一个治疗周期。

You've probably noticed that we follow the 'main-line' model for development, which means changes in all branches are periodically integrated back to the main code-line.

非常正确！你已经发现我们沿用的是'main-line'的开发模型，也就是说所有分支中的变更定期地回归集成到主代码行。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。