directional source 中文意思是什麼

directional source 解釋
定向震源
  • directional : adj. 1. 方向的。2. 【無線電】指向的，定向的。
  • source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
  1. We have experienced engineer, may accept the customer the handtailor electronic products ( including non - sign power source, special power source as well as measuring instrument ) design and production ; has the specialized sales people with professional skills, further provides the omni - directional service for the customer

    我們擁有經驗豐富的工程師，可接受客戶的特製型電子產品（包括非標電源、特種電源以及測試儀器）的設計和生產；擁有專業的銷售專才，進一步為客戶提供全方位的服務。
  2. In order to eliminate the influences caused by temperature, electrode - polarization and autoeciousness - capacitance, the traditional instrument has added complicated circuits so that it cause such shortcomings as big error, time - retardation and a relatively small scope. through the problems caused by 2 - probe electrode and ac current source, a new measuring circuit based on the excitation of bi - directional voltage pulse and the sensor of 4 - probe electrode is proposed, using single - chip to achieve auto - temperature compensation

    作者在參閱國內外大量相關參考文獻的基礎上，從電導測試技術的原理性研究出發，分析了採用交流激勵源、兩電導電極為傳感器的傳統電導測試系統所面臨的種種問題，提出並研製了一種基於雙極性脈沖電壓激勵、以四電導電極為探頭、運用單片機進行溫度自動補償的新型電導率測量系統。
  3. And then, the paper analyses the reason engaged in the directional property of underwater acoustic transducer and array, discusses the physical parameter of the directional property. to point acoustic source equal spacing linear array, the dissertation makes experiment analysis and simulation

    分析了水聲換能器及基陣指向特性形成的原因、表徵指向特性的物理參數，並針對點聲源等間距線列陣的指向性進行了數學、實驗分析與方針。
  4. The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering. the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control

    本文提出的定向路由協議ds _ dsr是基於對現有協議dsr的改進下實現的，通過定向鄰節點路由表、定向源路由和定向搜索來完成路由發現與維護。研究發現，定向天線的應用，相比全向天線可明顯提高網路的總的吞吐量，減少通道干擾、多址干擾，提高信干噪比，且由於定向天線的高增益可實現較遠距離、較少跳數的通信，減少了路由發現時間，這樣大大減小了傳輸時延，網路的整體性能得到了不同程度的提高，同時部分地解決安全問題，通過功率控制還可較容易的實現節能的目的。
  5. The main works are listed as follows : ( 1 ) based on the excitation of bi - directional current pulse technique, a new measuring circuit for weak variation of resistance was proposed for electrical resistance tomography. traditional ac current source is n ' t adopted as the exciting source. through fast bi - directional current switching, the polarization effects are eliminated

    該電路主要優點如下：該電路沒有採用傳統的交流電流激勵法作為系統的設計原理，而是通過快速的正負極性電流切換來削弱直流電流激勵時激勵電極的極化效應，使通過直流法來測量氣液兩相流的電阻微弱變化成為可能。
  6. Directional lights are a light source that is attached to a frame but appears to illuminate all objects with equal intensity, as if they were at an infinite distance from the objects

    方向性光源是附加到一個幀上的光源，但能夠以同樣的明暗度照亮所有對象，就如同從距離對象無限遠的地方照過來一樣。
  7. This light source is directional and is attached to a frame but appears to illuminate all objects with equal intensity, as if it were at an infinite distance from the objects

    此光源具有方向性，並附在一個幀上，但能夠以同樣的明暗度照亮所有對象，就如同從距離對象無限遠的地方照過來一樣。
  8. The concentrating energy source focuses the energy down and reduces percussion for the ground by using the theory of directional charge

    聚能震源彈採用定向聚能的原理，使激發的能量集中向下，減少了對地面的沖擊。
  9. The source code is presented next. note that if the light is a directional light, the vector with the first three components is normalised to save time latter

    函數的源代碼如下。注意如果光源是方向光，向量的前三個部分將被歸一化，來節省時間。
  10. Thus, it is quite necessary to deeply investigate some related problems, such as stray light transfer, stray light analysis and calculation, stray light suppression method, and baffle system design, bi - directional reflectance distribution function ( brdf ) of material surface, and accurate quantitative analysis and measurement of stray light performance of optical systems, like point source transmittance ( pst ) etc. this paper introduces stray light suppression method

    因此，對系統雜光的產生和傳輸、分析和計算、雜光抑制措施的採用與遮光系統的設計、材料表面brdf以及系統雜光pst的定量測試等方面進行深入研究，是非常有必要的。
  11. There is bi - directional affiliation between passenger ’ s transfer behavior and the visual environment of transfer and joint space. on one hand, passengers are dominant in the visual environment. on the other hand, visual environment is information source to restrict people ’ s behavior

    乘客的行為與換乘銜接空間的視覺環境之間存在著雙向聯系:一方面乘客在視覺環境中起主導作用，理想的視覺環境設計是為人服務，滿足人的行為需求;另一方面視覺環境是人獲取信息的來源，限定人的行為。
  12. The source of a directional light is assumed to be at infinite distance from the object / surface

    帶方向性的光源我們可假定它與物體/表面存在無限的距離。
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