By using a test method featuring artificially accelerated corrosion an investigation was conducted of the impact of power plant tail portion flue gas on the concrete of a smoke stack.

采用人工加速腐蝕實(shí)驗(yàn)方法，研究了電站尾部煙氣對煙囪混凝土的影響在线www色综合免费网不卡。對在H2SO4、HCl和HF酸液下的低溫腐蝕進(jìn)行了比較研究。

The corrosion behavior of the microwires in aqueous HF solution and melting NaOH were investigated respectively,and the anti-corrosion property of glass-coated pure copper microwires in strongly acid and strongly alkali were analyzed with the corrosion mechanism being discussed.

采用熔融紡絲法制備了玻璃包覆純銅微絲亚洲欧美中文日韩激情，對微絲表面玻璃包覆層的去除進(jìn)行了實(shí)驗(yàn)研究，評價(jià)了微絲在氫氟酸和熔融氫氧化鈉中的腐蝕行為αⅴ插插，分析了玻璃包覆純銅微絲在強(qiáng)酸和強(qiáng)堿中的耐腐蝕性能日本美女免费黄色网站，探討了其腐蝕機(jī)理。

Overall heat transfer coefficients for metallic stirred reactors are about 40 Btu/h-F- ft^sup 2^; for glass-lined reactors they are lower, around 30 Btu/h- F-ft^sup 2^.

金屬整體加熱攪拌反應(yīng)器傳熱系數(shù)約40 Btu/hF-英尺2 ^ ^燮，為搪玻璃反應(yīng)堆他們較低国产下药迷在线视频，約為30 Btu/h-的F -英尺2 ^ ^燮草草影院欧美一区。

Describes a numerical model which is applicable in the study of wide beam HF ground wave radar's signal processing.

根據(jù)高頻無線電波海洋回波譜理論，結(jié)合高頻地波雷達(dá)單站探測的實(shí)際應(yīng)用男女八x八x视频网站，建立了一個(gè)適合于研究高頻地波雷達(dá)信號處理的海面回波多普勒譜的數(shù)值模型国产999国内精品视频免费。

Being associated with three research projects, this dissertation makes deeply insight into the fast and accurate analysis, optimal design and manufacture of HF and VHF/UHF broadband omnidirectional miniature loaded wire antennas, loaded helical antennas and multiple-tuned VLF inverted L valley span antennas.

本文密切結(jié)合&十五&國防預(yù)研項(xiàng)目&軟件無線電天線&和&寬帶小型化天線&以及國防重點(diǎn)項(xiàng)目&某長波臺發(fā)信天線電氣參數(shù)分析與設(shè)計(jì)&等項(xiàng)目，研究了短波和超短波頻段上的寬頻帶加載線天線看黄免费看、加載螺旋天線和超長波倒L形多路調(diào)諧山谷天線的快速精確分析日韩一级aa大片免费视频、優(yōu)化設(shè)計(jì)以及樣機(jī)制作。

The iron deficiency anemia was not associated with the expected decrease in ferritin concentrations, which could be the result of inflammation accompanying HF, Nanas et al note in the Journal of the American College of Cardiology.

Nanas等研究者在《美國心臟病學(xué)會》雜志稱缺鐵性貧血并非預(yù)期所認(rèn)為的因鐵蛋白聚合物降低引起欧美日韩综合自拍小说网站，他們發(fā)現(xiàn)可能由心力衰竭的炎癥引起国产网站自拍。

The built-in, multi-waveform modem and 600/2400 bps vocoders provide high data throughput and secure digital voice over the most challenging HF channels.

內(nèi)置多波形調(diào)制解調(diào)器和600/2400bps語音編碼器提供高數(shù)據(jù)傳輸量，通過最具挑戰(zhàn)的高頻通道進(jìn)行安全的數(shù)字語音黄免费视频色。

This thesis examines the design of the physical layer for an OFDM system utilising novel digital signal processing algorithms.

基于DFT的正交頻分復(fù)用技術(shù)的提出91精品久久久久久中文字幕无码，為HF通信頻譜利用率與傳輸速率問題提供了新的解決方案。

In the case of scarce practical data and priori knowledge,modeling of the transmission loss of HF skywave to give guidance to the practical system is a very difficult problem in communication countermeasure simulation system.

如何在實(shí)際數(shù)據(jù)和先驗(yàn)知識較少的情況下欧美xxxxx又大又粗，建立適用于通信對抗仿真系統(tǒng)的短波天波傳輸損耗計(jì)算模型來為實(shí)際系統(tǒng)提供指導(dǎo)久久精品国产日本VA，是通信對抗仿真中一個(gè)非常棘手的問題。

Communication countermeasure simulation system ; HF skywave transmission loss ; Simulation procedure ; Simulation model

通信對抗仿真系統(tǒng)18禁毛片免费无遮挡无风险；短波天波傳輸損耗精品中文字幕在线；仿真流程；仿真模型