1) L5 frequency
L5频率
2) quasi L5
拟L5
1.
In this paper,we determine the derivation algebra and obtain some properties of quasi L5,Q5-filiform Lie algebras with one-dimensional center.
对中心是一维的拟L5,Q5-filiform李代数进行了讨论,具体确定了它的导子代数,并得到了导子代数的一些性质,同时证明了这类李代数是可完备化的。
3) L5/S1
L5~S1
1.
Objective To determine the variability of the anterior vascular anatomy at the lower lumbar spine and provide anatomic data for the design of L5/S1 anterior fusing plate.
目的对脊柱L4~S1段腹侧局部血管解剖进行研究,为L5~S1前路内固定系统的设计提供解剖学依据。
4) L5 pure aluminum
L5纯铝
1.
TC4 titanium alloy and L5 pure aluminum are joined by friction welded and then post-welding tempering treatment have been conducted.
进行了TC4钛合金与L5纯铝异种金属的摩擦焊接工艺及其焊后回火热处理工艺研究,利用光学金相分析、扫描电镜EDX线扫描、拉伸性能及硬度的测试,探讨了TC4钛合金与L5纯铝异种焊接接头焊合区的微观组织及其力学性能。
6) L5 signal
L5信号
1.
Based on the tracking theory of GPS C/A code,this paper puts forward the tracking theory of GPS L5 signal,and gives the figure of tracking system for GPS L5 signal.
文中借鉴GPS C/A码的跟踪原理,给出了GPS L5信号的跟踪模型,并给出了对L5信号的跟踪系统框图。
2.
In 1999, IGEB (the Interagency GPS Executive Board) signed documents about how to implement the L5 signal and measures that the USA government would take , so as to ensure the L5 signal compatibility with the existing system and carriers after the application of L5 signal.
45MHz)信号的一些文件以及美国政府要采取的一些措施，来保证L5信号实施后与现有的系统和载频兼容。
补充资料：变换器式频率表(见交换器式电表)
变换器式频率表(见交换器式电表)
transducer type frequency meter
曰‘口，”IuullqISn}P旧iUbloo变换器式颇率表meter)(transdueer tyPe见变换器式电表。frequeney
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条