lower shell 中文意思是什麼
lower shell
解釋
下筒體-
Hollow ferrites particles are the alternative to conventional solid ferrites particles, which have lower density, larger specific surface area and stability. moreover, it is expected electromagnetic wave can be reflected and absorbed again and again in the cavum of hollow particles which become its black hole. in addition, their electromagnetic parameters can be adjusted in a certain range by changing the thickness of the shell and the diameter of hollow microspheres, and the ability of absorbing microwave can be expected to improve
空心結構的鐵氧體是對傳統實心鐵氧體的改造，不僅密度小，還具有特殊的電、磁功能，有可能使電磁波在其空腔中反復振蕩吸收，成為電磁波的「黑洞」 ，從而增加材料的吸波能力，同時可通過調節核殼粒子的內外徑來調控電磁參數。 -
Most of researches were focused on the ground binding energies foe a = 5 - 17 with the same potential in the shell model, that some of the computation were consistent with their experimental values, others below the lower limit of them and others beyond the higher limit
在殼模型中，用統一的相互作用勢研究了核子數a = 5 - 17的超核的基態結合能，有部分超核計算值擬合實驗值，有的偏離較大。 -
Does not have any other supplementary materials including cotton seed shell, fertilizer, hormone and chemical additive and so on, therefore the lingzhi and the spore powder heavy metal content is extremely low, is lower than national standard 5 - 9 time
，無任何其他輔料包括棉籽殼肥料激素和添加劑等，所以靈芝及孢子粉重金屬含量極低，低於國家標準5 - 9倍 -
Shell manhole series shall be set on lower tank shell course for people and going out of the tank. the rainforcing plate of manhole is out of socpe supply. you want. acorrding to user drawing, our company can manufacture any type of the products user want
罐壁人口裝于油罐下部，人可以由此進入，本產品出廠時不帶加強版，如需其他標準或非標人孔，只需提供標準和紙圖，我公司即可生產。 -
In the paper, the latticed shell of double - layer hyperbolic pyramid is vertically applied to the structure of cooling tower and reinforced concrete planks with ribs are put up around the latticed shell, in accordance with situation that the most latticed shells are applied to lateral roof and cooling tower is put up by the reinforced concrete structure, a kind of new construction that includes the lower reinforced concrete structure and the upper latticed shell structure is established
本論文把雙層雙曲線四角錐網殼結構豎向應用於冷卻塔的筒壁，在網殼的周圍掛鋼筋混凝土帶肋板。由於目前大多數網殼結構都水平應用於屋蓋或樓蓋結構和冷卻塔筒壁大多數採用鋼筋混凝土結構，本文的研究形成了一種上部網殼結構下部鋼筋混凝土結構的新型結構。 -
On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully
高壓斷路器所造成的事故無論是在次數，還是在事故所造成的停電時間上都占據總量60以上。因此，及時了解斷路器的工作狀態對提高供電可靠性有決定性意義；並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測方法；提出了二次迴路保護器的概念，並將跳、合閘線圈完整性監視和二次迴路保護結合起來，給出具有完整性監視功能的二次迴路保護器實現方案；根據斷路器生產廠家提供的斷路器額定短路電流分斷次數，計算每次分閘對應的觸頭電壽命損耗，預測觸頭電壽命；提出根據斷路器殼體溫度和斷路器周圍空氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的方法，並根據此時的負荷電流間接計算主觸頭迴路的電阻；在硬體電路設計上，採用美國ti公司最新推出的一種功能強大的單片機msp430 ，並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題；在通信模塊的設計中，解決了不同工作電壓晶元之間的介面問題，並給出了直接聯接的接線方案。 -
The reason that the noise is lower with inclining tongue is : 1 ) both the radius of the tongue and the gap between the tongue and the blade are changed across the wideth ; 2 ) the phase angle between blade and the tongue is changed across the wideth, therefore the peak value of the noise do not appear at the same time, so the peak value of the noise with inclining tongue is much lower than the straight one. the influence of the expanded angle of the shell of the fan on the noise was invested experimentally, and the optimal angle was got
傾斜蝸舌降噪的主要原因是：一是改變了從氣流入口側到風機輪盤的蝸舌間隙和蝸舌半徑；二是改變了葉輪與蝸舌非定常相互作用的相位差，使其產生噪聲也有相位差，迭加的結果進一步降低了噪聲。另外，試驗研究了不同蝸殼擴張角對風機噪聲及效率的影響規律，蝸殼擴張角選擇當否，對效率和噪聲影響較大。 -
The result shows that material nonlinear will obviously lower the structural rigidity of [ 45 / 45 ] crossed angle ply shell, but the affect to the structural rigidity of perpendicularity symmetry ply shell is not so apparent
得出材料非線性會使| 45 - 45 |交角層殼的結構剛度顯著降低，但對正交對稱層殼的結構剛度影響並不明顯。 -
Second, the thermoelastic coupling vibration of cylindrical shell are discussed by means of the same method. the coupling coefficient, amplitude of temperature, initial displacement, ratio of length to radius and that of radius to thickness are main factors which influence the thermoelastic vibration of cylindrical shell ; the higher the coupling coefficient is, the lower the axial force, the axial stress and the axial moment are
其次，我們用同樣的方法研究了圓柱殼的非線性熱彈耦合振動，主要結論如下：影響圓柱殼非線性熱彈耦合振動的因素主要有耦合系數、溫度幅值、長徑比、徑厚比以及初始位移參數；耦合系數越大，軸向應力、軸向力以及軸向彎矩越小。 -
Acoustic properties of space inside a railcar are analyzed based fem when frequencies are lower : 1 acoustic modal inside the railcar is calculated whether coupled or uncoupled with shell of railcar, 2 acoustic field inside the railcar is calculated when a force is given
針對某型鐵路客車應用有限無法在較低的頻率范圍內對客車車內的聲學特性進行了研究分析，得出了客車車內流體自身的模態和液體與車體耦合后車內流體的模態，並在給定激勵下計算了客車車廂內部的聲場。
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