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- terrestrial-station antenna main beams 地面站天線(xiàn)主波束
- The antenna diagram approximation model used in our investigations considers constant gain within the full beamwidth of the main beam. 在研究當中,天線(xiàn)圖解的近似模型在主要波束的飽和波束寬度范圍內,可認為其增益是固定的。
- The crane is connected with the main beam through its under-frame and the truck chassis. 起重機通過(guò)其底架與汽車(chē)底盤(pán)與大梁連接。
- Luminaire designed to be suspended from a cable with its main beam axis at right angles to the axis of the road. 利用電纜進(jìn)行懸掛的燈具,其主光軸與道路主軸成直角。
- The main beam of the roof of this palace built in the Ming dynasty was made of precious wood. 這座明代宮殿的房柁用的可是名貴木材。
- The extended part is internal frame, which is pushed by hand to orbit for sending or receiving cargos inside main beam. 伸出部分為伸縮板,手推使之在固定橫梁內沿軌道運行接送貨物。
- Virtually LPI guide radar is a radar which stacks up against with ESM receiver of target in system detection sensitivenes,therefore in the system design it should consider the technology measures emphaticaly to ensure its antenna main lobe LPI capability. LPI制導雷達實(shí)質(zhì)上是一種從系統上與目標的ESM接收機進(jìn)行探測靈敏度較量的雷達,因此在系統設計上應著(zhù)重考慮使其天線(xiàn)主瓣LPI的技術(shù)措施。
- For Vibrating the construction of all kinks of pier, bridge, tunnel, foundati- on of building, post, main beam and various perfabricated components. 適用于各種橋墩、橋梁、隧道、樓房基礎、柱、主梁及各種預制構件的振搗施工。
- The main reason of the main beam down deflection was that the most complex stress exceeded the admissible value and achieved the yield limit value. 主梁下?lián)献冃蔚闹饕蚴鞘軣嵋鸬淖畲髲秃蠎Τ^(guò)許用值,達到了屈服極限值,強度不滿(mǎn)足要求。
- It is provided with a telescopic bracket.The box beam at the external side of the telescopic part of the bracket is inserted into the square hole in the main beam. 其中,拖架具有可伸縮功能,是通過(guò)可伸縮部分外側的箱形梁插入貨臺主梁的方孔中,選擇箱形梁上孔的位置來(lái)實(shí)現的。
- It usually has great affection in process of construction of cabled-stayed bridge with variety of the temperature, caused the main beam line form creation deviation in the end. 在斜拉橋施工過(guò)程中溫度的變化往往對斜拉索的索力產(chǎn)生較大影響,最終導致主梁線(xiàn)形產(chǎn)生偏差。
- It makes the calculation analysis of the integral stability of the whole bridge in the process of tensioned main cable and adjustment main beam stress and the process of tensioned main cable taking the proposed reverse suspension bridge as the object. 以擬定的某反吊橋方案為對象 ,對張拉主纜索調整主梁應力過(guò)程及張拉主纜索過(guò)程中全橋的整體穩定性作了計算分析。
- The company specializes in production of Model JPKK series endless chain electric block, JKBK flexible single main beam hanged crane, rotary beam hoist, as well as all kinds of motor, carriage, control box, etc. 本公司專(zhuān)業(yè)生產(chǎn)JPKK型系列環(huán)鏈電動(dòng)葫蘆、JKBK柔性單主梁懸掛起重機、旋臂吊起重機以及各種電機、小車(chē)、控制箱等。
- Technical specifications are all satisfied within required wide frequency range, which include VSWR, main beam width, sidelobe level, gain, and the mutual relation of sum and difference patterns, etc. 在較寬的頻帶內,對于駐波比,主瓣寬度,旁瓣電平,增益,和 與差方向圖對應關(guān)系等都得到了滿(mǎn)足。
- Deformation of the main beam of the bridge crane is one of primary breakdown.The pre-stressed method not only restores the main beam of the bridge crane , but alos improves its load-bearing capacity . 橋式起重機主梁的下?lián)献冃问菢蚴狡鹬貦C的主要故障之一,采用預應力張拉工藝修復,不僅能使主梁下?lián)系靡曰謴?,而且可以使主梁的承載能力得到提高。
- Reception improved because of the new antenna. 接受效果因有新天線(xiàn)而得到改善。
- Some main beam sharping technologies were summarized, and the operation mistake and some different ways to deal with the heads of fibers in the techniques of beam sharping were analysed. 5. 4、總結了國內主要的一些光束整形技術(shù),分析了在各種整形技術(shù)中操作誤差對激光光纖耦合效率的影響,比較了在整形技術(shù)中對光纖端面的不同處理方式對耦合效率的影響。
- Basically, a composite concrete deck consists of a concrete top slab, flanked on each side by concrete main beams, and a concrete middle beam. 組合混凝土梁的基本構成是頂部為混凝土平面,兩側為混凝土主梁,中間為混凝土中梁。
- No antenna, no radio, we're back in the nineteenth century! 沒(méi)有天線(xiàn),沒(méi)有無(wú)線(xiàn)電,我們回到十九世紀了。