trunk line 中文意思是什麼
trunk line
解釋
（鐵路的）干線；（電話的）干線，中繼線，長途線。-
This instrument can meter the electric level, frequency spectrum, carry to noise ratio, a / v, cobbly ratio, voltages of the ac trunk line and the battery. furthermore it can display the above information on the lcd and store them in the eprom
該場強儀可以對有線電視系統的電平、頻譜、載噪比、 a v比、系統不平度、交流干線和電池電壓等進行測量，並通過液晶顯示，結果保存於eprom中。 -
Dynamic electricity distribution : trunk line and switch box
動力配電：干線及開關箱。 -
High - low voltage switch box, dynamic trunk line, mcc, ats, walkie - talkie, broadcasting, fire alarming system, telephone system, etc
電氣：高低壓開關箱動力干線mcc ats對講廣播火警電話等系統。 -
Research of the ctc system of the jiaoji trunk line
膠濟鐵路干線調度集中系統的研究 -
Like any highway system, the federal airways have their main trunk line
同任何公路系統一樣，聯邦航空線路也有其主航線。 -
The traffic trunk line is a basic premise of the development of teb
工業集聚-擴散的波浪式運動是經濟在空間上擴散的一個基本模式。 -
Develop binhai new area of tianjin, build new trunk line of science and technology in beijing - tianjin - tanggu region
發展天津濱海新區打造京津塘科技新干線 -
Length of railways in operation ： refers to the total length of the trunk line under passenger and freight transportation
鐵路營業里程：又稱營業長度，指辦理客貨運輸業務的鐵路正線總長度。 -
Guangzhou - meizhou - shantou railway linked to beijing - guangzhou railway and beijing - kowloon railway makes shantou become an important outward - bound port in south china of the national railway trunk line
廣梅汕鐵路連接京廣和京九鐵路，汕頭成為全國鐵路干線華南重要出海口岸。 -
Because of the original design standard was low, the horizontal angur rigidity is serious lack, when the high speed train passes, the exceed limit of the horizontal swing had affected the lifting of the main trunk line, these diseases had been existed earlier but had not been gotten to resolve radical, and along with the increasing in speed of railroad train, these diseases performance will be more seriously, it ' s time for resolve
同時提速列車對橋梁結構的動力作用增大，特別是對上承式鋼板梁。由於原設計標準低，橫向剛度嚴重不足，高速列車通過時橫向擺動嚴重超限等已嚴重影響了主要干線的提速，這些病害很早就存在但沒有得到根治，隨著列車提速，這些病害表現越來越嚴重，已到了必須整治的時候了。 -
Thousands of users must share the limited bandwidth on the same trunk line, which to the contrary also produces serious accumulated noises. in the worst case, even the analog phone service could not be offered
原因很簡單，成千上萬個用戶必須分享同一干線上的有限帶寬，同時在干線上還將產生嚴重的噪聲積累；嚴重情況下，甚至連模擬電話業務也難以提供。 -
Directional solidified cu - cr in - situ composites have high strength, high electricity but without such problems of interfacial contamination and low stability as in the conventional man - made synthetic composites due to self - driven engender in the process of directional solidification, so this composites are expected to be used as contact cable, which is made for trunk line electrification
定向凝固cu - cr自生復合材料由於具有高強度、高導電性，同時因其在凝固過程中自動形成而避免了人工復合材料中長期存在的界面污染、穩定性差等不足，因而在電氣化鐵路用電車線材方面有廣闊的應用前景。 -
Most part of the north trunk line of wanjiazhai yellow river delivery project has to pass through the zone of collapsible loess, so the collapsibility of the loess foundation becomes the main engineering geological problem therein
摘要山西省萬家寨引黃工程北干線輸水管線大部分地段通過黃土地區，黃土地基的濕陷性已成為主要的工程地質問題。 -
The author points out that three basic factorsal are essential to the formation of teb : the traffic trunk line, group of towns, and the industrial sys tem based on the seconda ry industry and the tertiary industry
通過典型經濟帶的實證分析發現了「工業自生長點沿著交通軸集聚、擴散及再集聚的動態過程」 ，將其命名為工業波。 -
For long - haul high bit rate trunk line optical fiber communication system and metro optical fiber network, a semiconductor optical amplifier ( soa ) is the most promising component due to its all kinds of properties and small dimension, compactiveness, low drive voltage, such as in optical network solutions, polarization - insensitive semiconductor optical amplifier ( pisoa ) is a popular candidate as optical gates. but the polarization - insensitivity over large wavelength range is requested. the purpose of this thesis is to develop a soa which is polarization - insensitive and has large 3db bandwidth
隨著寬帶傳輸和寬帶接入以及全光網的組建和發展，大帶寬偏振不靈敏半導體光放大器（ semiconductoropticalamplifier ， soa ）由於其易於與其它器件集成，體積小，具有快的動態增益響應，非線性好，飽和輸出大，可實現無損操作等特點，在光通信網路中，成為光纖通信發展，全光網組建以及wdm 、 tdm技術成熟的關鍵部件之一，其中偏振不靈敏和大的3db帶寬是性能優良soa的重要指標，也是制備的技術難點。 -
This thesis is main analysis three gorges project to the great significance of the yangtze river shipping with main influence, make use of the safe condition of magistracy of yangtze river trunk line to synthesize the valuation way, to yangtze river upper stream water top transportation safety proceed take the gauge of, reason of detailed analysis trouble, find out the safe weak link that ascend of management, actual circumstance after join teetering the three gorges water area the water, bring up to establish the three gorges water area the shipping safety management system ' s speculation, provide the upper grade to test, then slice solid enhance the water on the transportation safe manage, and insure the three gorges water area the water on the transportation the stability of the safe situation
而近年來，長江上遊船舶航行秩序不穩定，事故多發，安全形勢不斷惡化，使三峽庫區形成后的航運安全管理顯得尤為重要和突出。本文主要分析三峽工程對長江航運的重大意義和主要影響，運用長江干線轄區安全狀況綜合評估辦法，對長江上游水上交通安全進行評估，詳細分析事故原因，找出安全管理上的薄弱環節，結合三峽庫區蓄水后的實際情況，提出建立三峽庫區航運安全管理體系的構想，供上級參考，以切實加強水上交通安全管理，確保三峽庫區水上交通安全形勢的穩定。 -
Primarily is to since 1995 the trouble circumstance of the yangtze river upper stream classification proceed statistics, application the safe condition of magistracy of yangtze river trunk line synthesize the valuation way, and proceeds to the safe condition of the yangtze river upper stream of three year take the gauge of, find out the main characteristics of trouble, and proceeds to trouble reason degree row preface, synthesize to analyze the trouble reason, clear and definite to have to establish the three gorges water area the shipping the safety to manage the system, and can insure the ships sail, anchor with homework safety
主要是對1995年以來長江上游的事故情況分類進行統計，運用長江干線轄區安全狀況綜合評估辦法，對近三年長江上游的安全狀況進行評估，找出事故主要特點，對事故原因進行頻度排序，綜合分析事故原因，明確只有建立三峽庫區航運安全管理體系，才能確保船舶航行、停泊和作業安全。 -
The changjiang msa is responsible for preserving safety of ship on trunk line of the changjiang river and environmental management of the changjiang river to prevent pollution from ship
長江海事局是代表國家實施長江干線水上交通安全和防止船舶污染管理的主管機關，是水上交通安全管理的行政執法單位。 -
We consider the 155 mbs port most suitable for high capacity switches with thick trunk line bundles, such as tandem switches and interconnected and interworking gateways
將傳輸網與交換網綜合考慮，結合帶寬特點，我們認為： 155mbits埠最適合於那些大容量、大中繼線束的交換機採用。 -
The existing telephone systems occupy a fixed channel during calls while tdm technology allows several calls to be carried simultaneously on a trunk line
已有的電話系統在雙方通話時要佔有一個固定的通道。在通話過程中這條線路始終是被佔用的。
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