point-precondition 中文意思是什麼
point-precondition
解釋
點預處理- point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
- precondition : n. 前提，先決條件。vt. 1. 把…預先安排[準備]好。2. 預先處理。3. 使…先作好思想準備。n. -ing 預處理。
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In order to utilize the frquency resource adequately and increase the capacity of mobile communication system, the wireless electric wave propagation of existing mobile system always adopts the microcell structure. forecasting the path loss characteristic of electric wave accurately can provide the necessary condition for the layout and design of wireless network, at the same time it is a precondition for the research on the microcell mobile system. the methods of forecasting of wireless electric wave propagation can divide into two parts : one is pluse and respond, that is establish the empirical model based on experimental and statistical data ; the other is ray tracing method, that is establish the deterministic model based on theoretical analyse. the paper discuss the characteristic of wireless signal electric wave transmition in symmetrical atmosphere of earth, and introduce the common path loss transmition model in land mobile communication system, also point out the localization of these models based on experiential methods
而精確預測無線電波傳播路徑損耗特性，則為合理的微蜂窩無線網路規劃、設計提供了必要條件，同時也是研究微蜂窩移動通信系統性能的前提。無線電波傳播預測的方法分為兩類：一是用沖激響應法，即根據實驗、統計所得數據建立經驗性傳播預測模型；另一種是用射線跟蹤方法，即依據理論分析來建立確定性的傳播預測模型。本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。 -
Strengthening education is the precondition of practicing the eight honor or eight disgrace, doing from ourselves and little things and now on is the basic requirement, being the first of parents and teachers especially the cpc ' s lading cadres at all levels to do it is the focal point, and making necessary amendments to the rules and regulations to strengthen the force of encouragement or punishment is the key and guarantee
踐行「八榮八恥」 ，加強教育是前提，從自己做起、從小事做起、從現在做起、知行合一是基本要求，父母、教師尤其是黨的各級領導幹部以身作則、率先垂范是重點，建立健全相關法律與制度、加大激勵與約束力度是關鍵和保障。 -
A new concept to determine the delivery head of the pump and to set up the pressure of the system is proposed in this paper, based on the precondition to ensure the water head demand of any fire appliance at the most unfavorable point
從保證最不利處滅火設施水壓要求這一基本前提出發，提出確定穩壓泵揚程和設定壓力的新思路，並按3種情況分別作出說明。 -
So when we talk about the public goods " characteristics, we must consider their precondition. this precondition is the public goods congestion. the public goods will have two characteristics when the number of public goods " users is less than the number of public goods " congestion point
正是基於這一點，公共物品兩個特點的成立是有條件的，即在擁擠點之間，公共物品才具有非排他性和非競爭性，所以公共物品是指設計使用者大於1的物品。
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