line of strike 中文意思是什麼
line of strike
解釋
走向線-
This thesis built the models computing the working frequency over - voltage " operation over - voltage for 220kv fugai transmission line, calculates and analyzes working frequency over - voltage " operation over - voltage using emtp program and provides reasonable protection measures for the transmission line. furthermore, regulations method, traveling wave method and striking distance method are used to study and compare lightning - enduring capabilities of different types of pole in power transmission lines aiming at the fact that the lightning strike switching rate of 220kv fugai line is higher
本文分別建立了計算220kv復蓋線路的工頻電壓升高及操作過電壓的計算模型，利用emtp程序對220kv復蓋線路工頻電壓升高、投切空線過電壓、投切空變過電壓、單相故障過電壓進行計算分析，並提出合理的防護措施。 -
Various factors that influence lightning strike switching rate are also analyzed. it has been showed that for some given configuration, all lightning over - voltages on substation equipments do not exceed the 1ightning strike insulation level in the case of invading waves out of lightning strike aerial input protection line
同時利用規程法、行波法、擊距法對輸電線路中不同桿塔型號的耐雷性能分別進行了研究和比較，對影響輸電線路雷擊跳閘率的各種因素進行了分析。 -
In this dissertation, the author has covered such key points as follows : 1. modeling of fire distribution for all kinds of air defense weapons against low altitude targets ( including various anti - aircraft missiles against low altitude targets ) and taking into account the fire distribution against the cruise missile as a special air strike weapon for the first time ; 2. an overall analysis of the factors that have effect on threat degree and advantage degree as well as the fuzzy distribution of individual factors ; establishment of models for threat degree evaluation and advantage degree evaluation in fuzzy method in conjunction with fire distribution model in sort method, resulting in the materialization of a new fire distribution model, i. e., fuzzy sort model ; 3. modification of the definition of distribution line of target and realization of optimized fire distribution against the initial targets and the targets that await fire shift
論文的主要內容包括: 1 ）建立了各種陸軍低空防空武器（包括各種低空防空導彈）的火力分配模型;首次將巡航導彈作為一種特殊的空襲兵器，優先考慮了對它的分配。 2 ）分析了威脅度和有利度的影響因素及各單因素的模糊分佈，建立了一種新的火力分配模型? ? 「模糊排序模型」 。 3 ）修改了目標分配線的定義，實現了對射擊目標和轉火目標的優化分配。 -
When switching the no - load overhead lines by alternating - current high - voltage circuit breaker which is a kind of daily operations in electric power system, over - voltage is probably bringed out and insulating property of the electric devices is breakdowned sometimes, especially, when occuring re - strike. the main purposes that the tests on switching line - charging current are performed in the laboratory are assessing re - strike performance of circuit - breakers. according to the test results, the design of the circuit - breaker is optimized and re - strike performance is improved
交流高壓斷路器是電力系統中最關鍵最重要的設備之一，斷路器開合空載架空線路是電力系統中常見的操作，操作過程中通常會出現過電壓，對系統絕緣造成威脅，嚴重時會破壞系統的絕緣性能，發生事故，隨著電力系統電壓等級的提高、輸電線路不斷延長及傳輸容量的增大，由操作過電壓引起的絕緣閃絡、設備破壞事故的幾率更加突出。 -
Third base umpire - responsible for monitoring safe / out calls at third base, deferred strike out calls of left handed batters, and fair ball calls down the left field line
三壘審：負責監督三壘安全上壘或出局，左手打擊者是否出棒，球落到左外野線上是否屬于界外球。 -
First base umpire - responsible for monitoring safe / out calls at first base, defered strike out calls of right handed batters, and fair ball calls down the right field line
一壘審：負責監督一壘安全上壘或出局，右手打擊者是否出棒，球落到右外野線上是否屬于界外球。
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