空心度 的英文怎麼說
中文拼音 [kōngxīndù]
空心度
英文
degree of hollowness-
It starts later for developing air - core power reactor by ourselves in china, but also it is not high for automaticity of design and manufacture
我國自主研發空心電力電抗器起步較晚,設計與製造的自動化程度不高。Calculation and research of normal section strength of prestressed concrete skew hollow slab
預應力混凝土斜交空心板正截面強度計算研究This article through installs the reactor with air core in the transformer substation transmission, to control the thunder electric wave amplitude and steepness in the transformer substation ; through over voltage on - line monitoring device testing, inquire into lightning protection of the reactor with air core
本文通過在變電站的輸電線路的出口處加裝空心電抗器,對通過輸電線路侵入變電站的雷電波的幅值和陡度進行抑制;並通過安裝過電壓在線監測裝置進行測試的方法,初步探討了空心電抗器防雷的作用。Space truss has developed rapidly in china and designer for its advantage has accepted the sphere soace grid. joints have play very important role in structure. generally, the weided hollow ball joints are adopted. but sometime they can not satisfy the requisition of structure. so a lot of people are busy searching for joints and fouding out all kinds of joints. a new joint - welded hollow truncated joint will be now in this paper
在我國大空間、大跨度的結構越來越多,節點在空間結構中起著重要的作用,焊接空心節點在網架、網殼等空間結構中被大量應用。本文研究的是一種新型的節點? ?焊接空心鼓形節點。 《網架結構設計與施工規程》 jgj7 - 91和《網殼結構技術規程》 jgj61 - 2003隻對空心球節點提出了承載力的計算公式,而沒有引入鼓節點。On the other hand, the harmonic and surge current in capacitor banks is restrained so that the capaci - tor is protected by reactor. since this type of reactor has a dry - type air - cored structure, no - core structure without ferromagnetic induc - tion effect, it is provided with the feature of good linearity and low noise, so that the product is convenient for maintenance and ope - ration in all weather
該型電抗器採用乾式空心結構,維護簡單,運行安全,無鐵心,不存在鐵磁飽和,電感值不會隨電流變化而變化,線性度好,噪聲低,適合全天候條件下運行。The method is as follows : calculating the length, angles and coordinates of pre - cast hollow slab in cartesian coordinate system, and then adjusting the width of hollow slab beams and length of cantilever boards to make the linear cantilever slabs close to the transition of mute
具體方法是:採用直角坐標系計算預制空心板斜長、首尾夾角和起終點坐標,根據計算結果與路線線形之差,多次調整空心板梁的梁板寬度和懸臂長度,使外懸臂折線滿足路線的緩和曲線線形。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。The results show that the heat preservation coating and its proper thickness are favorable to the enhancement of filling mold speed of aluminium alloy ; the higher the pouring temperature is and the larger the ratio of hollow areas of vertical pouring is, the faster the speed of filling mold of aluminium alloy is ; if the mold is too thick or too thin, it may decrease the speed of filling mold ; the proper length and the area of vertical pouring are favorable to the enhancement of the speed of filling mold ; although negatire - pressure may improve filling the speed, too high negatire - pressure may enlarge the flaw in casting
結果表明:保溫塗料及一定的塗層厚度有利於提高鋁液的充型速度;澆注溫度越高、直澆道空心面積率越大,鋁液充型速度越快;模樣厚度太厚或太薄,均會使鋁液充型速度降低;一定的直澆道長度及直澆道面積有利於提高鋁液的充型速度;施加負壓會使鋁液的充型速度大大提高,但負壓過大會增大鑄造缺陷。Handline cucumis melo and aqualica forsk seeds with different concentrations of detergent and soap, shows germination of detergent and soap and that even the effect of the same concentration of detergent and soap on the seeds is different
摘要以不同濃度的洗衣粉、肥皂液處理空心菜、香瓜種子,發現不同濃度的洗衣粉,肥皂液均能不同程度抑制種子萌發及幼苗生長,且相同濃度洗衣粉、肥皂液對種子生長影響也存在差異。The design of the hollow billiards of century ck security locks is plane and heterotype, it can enhance the billiard very poor precision and key sealed, it can reduce the rate of mutual opening, improving mechanical properties of security
世紀西科防盜鎖鎖芯的上彈子設計成平面異形空心彈子,提高彈子的極差精密度和密鑰量,減少鎖具間的互開率,提高機械防盜性能。The control motors in the well traction robot require high temperature resistant, quick response, small volume and large power density. because coreless dc motors uses ironless - rotor, the inertia and inductance is very small, mechanical time constant is less than 28 milliseconds, several products can attain in less than 10 milliseconds. its weight and size are 1 / 3 - 1 / 3 less when compared with an iron core motor of same power
水平井牽引機器人對控制電機不僅有耐高溫要求,而且有響應快、體積小、能量密度大等要求,而空心杯電樞直流電動機由於無鐵心,故慣量和電感均大為減小,機電時間常數小於28ms ,部分產品可以達到10ms以內;與同等功率的鐵芯電機相比,其重量、體積減輕1 / 3 - 1 / 2 ,是低慣量電機中性能最好的一種。Taking an ultimate deflection more than 1 / 50 of calculating span as the determinant term, by the means of numerical analysis and regress equation respectively, this paper discusses the reasonable stretching controlling stress of usual span and reinforcement slabs for design reference
以極限撓度達到跨度的1 50作為延性破壞的判定指標,本文分別運用數值分析程序試算和回歸方程得出了常用跨度、常用配筋的中強( 1270mpa )螺旋肋鋼絲預應力混凝土空心板的張拉控制應力的取值,供設計參考。Using the vector potential, the expression for calculating inductance of air - cored solenoid coil is derived in the dissertation. and the calculating methods of function t in the calculating expression are given for the convenience of the calculation of inductance while the precision is not strictly requested
利用矢量磁位a直接推導出了通電空心圓柱線圈電感的計算表達式,給出了求解計算式中函數t的計算方法,以方便精度要求不高時的電感計算。The measures of improving hollow shaft ' s precision
提高空心細長軸磨削精度的措施By low - cycle and reverse horizontal loading test, their properties including strength property, deformation property and energy property are studied. we study the loading characteristic values ; the property of hysteretic curve and skeleton - frame curves ; the ductility property and stiffness degradation. lastly, based the data got from the test, this paper analyses and value the seismic behavior of every members
在試驗基礎上,研究了軸心受壓構件的承載力計算和穩定問題;研究了低周反復水平加載條件下,彎剪構件和整體空心墻板的強度、變形、能量特性;軸壓構件的荷載特徵值;彎剪構件和整體空心墻板的滯回曲線、骨架曲線、延性等參數;從強度、變形和能耗等方面判別和鑒定各構件的抗震性能,對各個構件給出了試驗的結論、評價。In the highest clouds, at about - 30 f, the vapor crystallizes as long needles or hollow columns
在最高的雲層里,在大約負30度,水蒸氣結成長針頭狀或者空心柱狀。As the temperatures increase through different ranges, the flakes will form as flat hexagonal plates, followed by hollow columns, needles, and then back to lacy hexagons between 25 f and 32 f
當溫度通過不同的范圍上升時,雪花將會形成平面六角板,其次是空心柱和針頭狀,然後在25 ? 32度之間又會變回花邊六面體。Study of temperature crack of hollow concrete block
混凝土小型空心砌塊建築溫度裂縫問題探討1. since this type of reactor has a dry - type air - cored structure, which will prevent leakage and burning so as to maintenance easily and operate reliably. no - core structure without ferromagnetic induction effect so that it is provided with the feature of good linearity and low noise
1 .電抗器採用乾式空心結構,避免油浸式電抗器發生漏油易燃等缺點,維護簡單,運行安全,無鐵心,不存在鐵磁飽和,電感值不會隨電流變化而變化,線性度好,噪音低。The bottom roller and sub - bottom roller of hcr is calculated about its equivalent stress, contact stress and the distributing of pulling - stress along the inside track of hcr. also, effects of hollowness and pinch fit are analyzed on bearing stress and rated load
主要計算預負荷空心圓柱滾子軸承的最底部滾子和次底部滾子的等效應力、接觸應力和滾子內圈拉應力的分佈情況,分析滾子空心度和過盈量對軸承應力和額定載荷的影響。分享友人