海水混響 的英文怎麼說

中文拼音 [hǎishuǐhúnxiǎng]
海水混響 英文
water reverberations
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 混 : 混形容詞1. （渾濁） muddy; turbid2. （糊塗; 不明事理） foolish; stupid
  • 海水 : seawater; brine; the sea海水剝蝕 [地質學] marine denudation; 海水淡化 desalination of sea water; ...
  1. Most of the pandas are distributed between 2 600 - 2 800 m ; 2 ) the pandas more often exploit the conifer - and - broadleaf - mixed forests and prefer to feed fargesia denudafa and more of their activities happen in forests where arrow bamboo grows better ; 3 ) the pandas avoid habitats where human disturbance is intensive ( x2 = 22. 000, df - 3, p = 0. 000 ) ; logging and livestock grazing significantly influence feeding habitats of pandas, while herb collecting and poaching has not. the giant pandas prefer the habitats where no human disturbance occurs. in conclusion, human activitires have intensively influenced feeding and other activities of the giant panda and its habitats

    垂直主要分佈在海拔2600 - 2800m范四川大學碩士學位論文圍內; 2 ）主要利用植被類型中的針闊混交林，選擇有缺苞箭竹、而且缺苞箭竹生長良好的生境，對位置和森林起源這兩個生境因素的不同水平，都是隨機利用，沒有表現出明顯的偏好; 3 ）大熊貓明顯迴避那些人類干擾強度大的生境（ xz二22 . 000 ， df = 3 ， p = 0 . 000 ） ;伐木和放牧對大熊貓食竹的生長狀態有明顯影響，對發生采藥和偷獵的生境沒有明顯迴避;對於人類干擾強度大的生境，大熊貓利用頻度很低，干擾弱或中等時，表現出隨機利用;對于沒有干擾的生境，是高頻利用。
  2. This paper studies the mechanism generated from flow - noise in seawater pipeline, introduces controlling method of flow - noise, analyzes sound field characteristics of flow - noise in seawater pipeline system and the merits and demerits of measuring the flow - noise methods in and out of the pipeline. in our experiment, a test measuring device of seawater muffler is used in a measuring chamberlet to verify that a method of reverberation chamberlet is difficult to exactly measure the low frequency flow - noise in pipeline. at the same time the insertion lose of water muffler in the low frequency was measured by the measuring chamberlet method

    本文分析了海水管路系統內流噪聲的產生機理，介紹了流噪聲的控制方法；分析了海水管路系統中流噪聲的聲場特性以及流噪聲管內、管外測量方法的優缺點；通過海水消聲器試驗測量臺架，利用測量小室驗證了混響箱法難以準確測量海水管路系統中的低頻流噪聲；用測量小室對水消聲器在低頻段的插入損失進行了測量。
  3. Being lightweight aggregate, the chemical mineral constituents and physical mechanics properties of lytag are analyzed. meanwhile properties of haydite concrete using lytag as coarse aggregate are also studied. the influences on lightweight concrete qualities by introducing wollastonite and chemical admixtures are researched which proves the important roles of wollastonite and admixtures in construction of concrete platforms

    分析了作為輕骨料的粉煤灰陶粒的化學、礦物成分和物理力學性能以及用它作為粗骨料配製出的輕質混凝土的各項特性；研究了摻入硅灰和減水劑等外加劑對混凝土的強度、耐久性和新拌混凝土可工作性的影響；說明了硅灰和化學外加劑在海洋平臺混凝土施工中不可或缺的作用。
  4. Hong kong is on the southern coast of china within the south china sea environ and at the eastern edge of the pearl river estuary

    西面海域主要受到珠江較混濁的淡水影響，而此情況在夏天雨季時尤為顯著東面海域主要屬于海洋性水質。
  5. The harbor construction exposed to the oceanic environment year - by - year is easily corroded by sea water, impacted by sea waves and to cause steel corrosion, so the concrete deterioration reduced the harbor constructions security and the service life

    摘要港灣工程結構物常年曝露在海洋環境，容易受海水侵蝕、海浪沖擊、鋼筋誘蝕等影響，造成混凝土惡化，降低港灣工程構造物的安全性與使用年限。
  6. Lt is obvious that the decaying rule of average reverberation intensity is affected by scattering coefficient of sea floor, sound speed profile, inclination of bottom etc. the sea floor scattering function is the most importan factor to the intensity decaying rule

    結果表明：海底散射方向性指數因子、海水聲速梯度、海底傾斜角等對海洋混響平均強度的衰減皆有影響。海底散射方向性指數因子對其影響最大，即適當選取海底散射模型是淺海近程混響建模的首要因素。
  7. In the experiments, the degree of swelling of pva and sa blended homogeneous membranes has been researched. in the 90wt % isopropanol solution, the membrane ' s degree of swelling increases with the pva content in the homogeneous membrane increase. the effect about several crosslinking agents to the membrane separation performance has been studied

    在試驗中，本文首先考察了聚乙烯醇與海藻酸鈉共混膜，在90wt的異丙醇水溶液中的溶脹度，發現不同共混比對膜的分離性能有一定的影響，隨著膜中pva含量的上升，膜的溶脹度增大。
  8. The surface material is liable to erosion wear with high - velocity sediment - laden flow, hi this paper, sand wear mechanisms are discussed and some effects of significant flow factors on material wear are analyzed ; the possibility of preventing erosion wear with aeration is proposed ; based on test data, the formula for calculating the concrete material wall surface wear rate is derived. it is indicated that the wear rate is related to the air concentration, the strength of material, the flow velocity and the sediment content. it is shown that wear rate can be reduced with the help of flow aeration

    分析了空蝕與磨蝕的不同物理特徵；探討了沙粒磨蝕機理，提出了影響磨蝕vi河海大學博士學位論文一的因素；研究了摻氣抗磨的可能性：建立了混凝土材料壁面磨蝕率的計算公式；說明含沙水流對固壁材料的磨蝕率隨摻氣濃度、材料強度的增大而減小，隨水流流速、含沙量的提高而增大；利用摻氣可有效地降低過流表面的泥沙磨蝕率。
  9. Seasonal rainfall affects the outflow of the pearl river, the largest river in southern china, causing brackish waters to extend into areas which for most of the year experience clear oceanic waters

    華南最大河流珠江所流出的河水，因受季節性的雨水影響，引致鹹淡混合的水流，流入全年中大部分時間水質都是清澈的海洋。
  10. Statistic relationship between water / cement ratio and chloride diffusion coefficient was gained by experiment, based on which the influence of concrete cover, water / cement ratio and design reference period on structural reliability was discussed. 2. there are two models provided to predict remaining service life

    通過試驗確定了水灰比與氯離子擴散系數之間的統計關系，在此基礎上分析了海洋環境下混凝土保護層厚度、水灰比、設計基準期等與耐久性有關的非承載力因素對設計基準期內結構可靠性的影響。
  11. The observation data are collected from some specific experiments in the laboratory cistern, the lake and the ocean

    混響數據是在專門設計的水池實驗、湖上試驗和海上試驗中現場採集的。
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