質量不變 的英文怎麼說
中文拼音 [zhíliángbùbiàn]
質量不變
英文
mass conservation-
As the accretion disk feeds more mass into itself, the embryo star contracts, growing ever denser and more massive.
隨著吸積盤獲得越來越多的物質，胚胎恆星就不斷收縮，密度和質量都變得越來越大。High accuracy kdp crystal optics is now considered as one of optics that is the most difficult to be processed for its series of disadvantageous characteristics to optics processing such as anisotropy, soft nature, easy to deliquesce, high brittleness, sensitive to temperature change, easy to crack and so on. therefore the long machining period, low percent of pass and astaticism quality has become the bottleneck of icf technology, and the surface quality control of kdp crystal processing has become the key problem to be solved in the research of icf in our country
Kdp晶體零件是目前公認的最難加工的光學零件之一，因為kdp晶體具有各向異性、質軟、易潮解、脆性高、對溫度變化敏感和易開裂等不利於光學加工的特點，所以加工周期長、合格率低、質量不穩定成為慣性約束聚變技術的瓶頸， kdp晶體超精密加工表面質量控制問題已經成為我國慣性約束聚變研究中亟待解決的關鍵問題。The control system of furnace " s temperature has been widely used in every walk of life, as an important link of repair and manufacture of the electrical equipment such as electromotor transformer etc., soaking lacquer drying craft has some especial requests on drying crafto this article starts with the analysis of drying chamber " s configuration, analyzed its configuration limitation and control function limitation according to the factory " s situation and advances the conception of heated air drying circulation, in addition, this article adopts an intellectualize a / d module, a development sampling tuning - voltage circuit, and presents the method to measure online the insulation resistance of products in order to improve constantly products quality
而浸漆乾燥工藝作為電機、變壓器等電氣設備的修理、製造中的重要環節之一，對乾燥過程的質量要求有一定的特殊性。該文從乾燥爐的結構分析入手，聯繫到工廠的實際情況分析了結構功能缺陷和控制功能缺陷，提出了熱風循環乾燥的概念，同時，選擇了較為先進的a d板卡、熱電阻信號調理板等專業化智能卡，運用數字pid控制技術，構成了一個較有特色的計算機控制系統。此外，該文還從保證乾燥品質量的角度，採用智能化交流模塊和自製采樣調壓電路的方法，提出了在線檢測產修品的絕緣電阻的方法和手段，以確保企業產品質量不斷提高。Motive power is, in quantity, invariable in nature, it is never either produced or destroyed.
原動力在數量上實質是不變的，它絕不會產生也不會消失。4 ) in a pre - swirl rotator - stator cavities with discrete pre - swirl nozzles and blade - cooling entry holes, the influences of pre - swirl angle and flow parameter on the flow and heat transfer characteristics were numerically investigated. the correlation for average nusselt number vs rotating reynold number or non - dimensional mass flowrate were established. the results show that : advantage of per - swirl inflow is the effect of cooling the blade - cooling entry holes ; pre - swirl inflow increases heat transfer in rotating disk of pre - swirl chamber ; as pre - swirl angle increases, local nusselt number decreases in pre - swirl chamber ; the temperature of stator of inner rotator - stator chamber and per - swirl chamber decreases as rotating reynold number increases ; when the axial mass flowrate maintains constant, heat transfer in the rotating disk of inner rotator - stator cavities does n ' t change as per - swirl mass flowrate increases, while heat transfer in the rotating disk of per - swirl chamber increases ; when the pre - swirl mass flowrate maintains constant, change of the axial mass flowrate has effect on the whole cavity
結果表明，預旋進氣的優點在於增強了葉片冷卻孔附近的對流換熱效果，局部努謝爾數隨預旋角的增大而有所減小；隨旋轉雷諾數的增加，不論是內轉靜腔室還是預旋腔室的靜盤上的溫度都不同程度的降低：當軸向中心進氣質量流量不變時，隨預旋進氣的質量流量增加，內轉靜腔室的轉盤盤面上的換熱基本沒有變化，而預旋腔室的轉盤盤面上的換熱效果增強；當預旋進氣質量流量不變時，軸向中心進氣的質量流量的改變對整個盤腔都有影響。That is the reason that all over the countries have never stopped researching for mask jamming technology of radar. at present, the mask jamming source mainly comes from the thermal noise and zener avalanche noise of semiconductor devices. but the noise ’ s quality isn ’ t stabile because of the differences of semiconductor devices each other and the changes of exterior conditions
目前採用的遮蓋性干擾的噪聲源主要來自半導體器件本身的熱噪聲或齊納雪崩噪聲，但各器件本身的不一致性和外界條件變化等因素使噪聲輸出質量不穩定;同時由於此類信號不能再生，不利於科學研究。Purpose : the equipment is used for mensurating the change of weight of materials at different atmosphere during heating process
用途：高溫熱重氣氛燒結爐用於測量樣品在不同氣氛環境里被加熱過程中質量的變化。There are lots of problems faced in front of qilu petrochemical company as below. they can not adapt to change immediately because the development of new productions as well as the species and qualities of productions can not meet with the requirements of market. the structures of equipments are unreasonable
齊魯石化公司作為中國石化集團公司下屬的一個特大型石油化工企業，現面臨的問題：新產品開發和產品的品種、質量不能滿足市場的要求，應變能力差；產品結構不能適應市場需求；高附加值產品的比重低；經濟指標落後；科研與生產、銷售的聯系不夠密切等。Wuxi nakano machinery co., ltd. and japan - field technology, the development of a new type of closed turntable polishing concrete slabs. polished tiles from the radically changed the cooling water production accelerated, workers unable to operate close to the phenomenon ; supported by tanks under the workpiece table, it will not only compensate for the loss millstone, but stable grinding force. different uniform surface quality products ; with the grinding process workpiece turntable and rotating products
無錫中野機械有限公司引進日本技術，全新開發的轉臺型封閉式混凝土地磚磨光機，從根本上改變了磨光地磚生產中冷卻水飛濺，操作工人無法靠近的現象工件轉臺由下油缸支承，不僅能及時補償磨石的損耗，而且磨削力穩定不變，不同產品的表面質量均勻一致磨削過程中產品隨著工件轉臺而轉動，避免了其它型式磨光地磚生產中產品不動而帶來的同一產品表面質量不均的現象。Based on the theory of stochastic finite element, the structural parameters of frame - shear structure including stiffness and mass and damping are simulated to be stochastic variables. by solving recurrence equation of stochastic finite element, the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame - shear structure. an analysis is thus given to the effects of independent variation and simultaneous variation of structural parameters on the seismic dynamic response of frame - shear structure. as shown by the results, with regard to frame - shear structure, the effect of variation of strucural parameters on the change of mean value are chiefly the increase of standard deviation of response. variation of stiffness will cause the response of frame - shear structure to variate greatly ; variation of mass shows less effect ; and variation of damping shows insignificant effect. the effects of simultaneous variation of various structral parametres on seismic response are only slightly greater than the effect of stiffness variation alone
以隨機有限元理論為基礎，將框剪結構的剛度、質量、阻尼等結構參數為隨機變量.通過求解隨機有限元的遞推方程，得到框剪結構各層的地震動力響應均值和標準差歷時曲線.分析結構參數單獨變異，以及同時變異對框剪結構地震響應的影響.研究結果表明，對框剪結構而言，結構參數的變異對響應的均值變化影響都不大，主要是增大響應的標準差.剛度的變異性將引起框剪結構的響應發生大幅度變異，質量的變異性影響稍小，阻尼的變異性影響不顯著.結構各參數的同時變異，對框剪結構地震響應的影響，僅比剛度單獨變異的影響稍大Vanadium is important and valuable in steel - making, electronic production and national defence industry etc. now, the operation pattern of refining vanadium in our nation is based on human experiences, and the automation degree is still at a low level. operation mode based on human experiences is one of the main reasons make the quality of semi - steel and vanadium product unstable. in developed contury such as russian, static model was used to control the process of vanadium refining
我國目前的轉爐提釩為人工操作模式，由操作人員根據經驗和感覺進行操作，自動化水平低，存在著釩渣質量和半鋼質量不穩定的問題；在國外，俄羅斯等一些國家已經在使用靜態模型對提釩過程進行控制，取得了較好的效果，但是這些模型大都是根據復雜的物理化學規律研製的機理模型，要求有非常穩定的生產流程和工藝條件，對于鐵水成分、生產設備等變化的適應性差，不但移植困難，而且模型價格異常昂貴。The article has researched the intention of agricultural industrialization which is guided by market and mainstay enterprises, based on agricultural product base organized by a lot of families, and characterized by joint management and mutual benefit. it also realized production specialization, product commercialization, service socialization and etc. the article has also researched the existing conditions of agricultural industrialization both at home and abroad. although it is different in national conditions and actual practice, the developed countries follows the market economic law and naturally steps on the road of agricultural industrialization. as the continuous reforming and opening up, china actively explores and enhances the management level of agricultural industrialization. the writer uses system changing theory, scale management theory, trade expense theory. market system theory and industrial economics theory, to put forward the main type of mainstay enterprises, which is divided by ownership, organization form, contact form and product. the writer thinks that development of mainstay enterprises can promote effective joining between small production and big market, the developing of high - benefit agriculture, establishing trade / industry / agriculture operation system, region economics and joining process between urban area and rural area. the existing conditions in strengthening the mainstay enterprises in zhaoyuan embodies continuous expanding in scale. continuous widening in fields, continuous enhancing in benefits, continuous improving in techology and quality. by finding the problem and shortage in product quality, developing ability and scale strength, the article has put forward the following views : face to market and enhance quality and techological content of agricultural products ; enforce flexible policy and investments ; establish fair and reasonable benefits joining system. the article has also put forward the countermeasures and suggestions on enhancing the enterprises ' management level
文章研究了農業產業化經營的內涵，明確其以市場為導向、以龍頭企業為依託、以一大批農戶組成的農產品生產基地為基礎，形成農工商有機結合、風險共擔、利益均沾的本質特點，表現出生產專業化、經營一體化、企業規模化、產品商品化、服務社會化等特徵。分析了國內外產業化經營的現狀，認為盡管各國的國情不同，具體的做法和叫法不盡相同，但是經濟發達國家都遵循市場經濟規律，很自然走上了農業產業化經營的道路，發展中國家紛紛仿效，中國也隨著改革開放不斷深入，積極探索發展提高農業產業化經營水平。作者運用制度變遷理論、規模經營理論、交易費用理論、市場機制理論和產業經濟學理論，提出了龍頭企業從所有制形式、從組織形式、從聯系方式及從產品上劃分的主要類型；認為發展龍頭企業有促進小生產與大市場的有效對接、推動優質高效農業縱深發展、建立貿工農一體化運行機制、振興區域經濟、加速城鄉一體化進程等作用；考察了招遠市壯大龍頭企業推進農業產業化的現狀，表現在規模不斷擴大、領域不斷拓寬、效益不斷提高、技術不斷改進、質量不斷提高等方面；找出了龍頭企業產品質量上、開發能力上、規模實力上和行業自律上的問題和差距，提出了要面向市場，努力提高農產品的質量和科技含量，多策並舉，搞活投入機制，建立公平合理的利益聯結機制，加強行業自律，提高企業經營管理水平等對策和建議。It is possible to increase both the quality and the price of a product without changing its competitive position
選項說的是同時增加質量和價格，與原文說的增加質量（價格不變）或者降低價格（質量不變） ，意思不一樣This is a reasoned announcement of a price increase. the impact is softened by telling the client that some lines are not affected and by stressing continued quality
這封信通知客戶價格調升事宜.為令客戶安心，指出只有部分貨品需調整價格，又強調保持質量不變We find that there usually exist peaks in the electric derivative curve and optic derivative curve of high power semiconductor laser, these two kinds of peaks are related properly, the peaks with reliability of device. while the peaks with relation with the reliability of device, while the peaks with same direction are usually related to the inner defects, same directin are usually related to the inner defects, carrier leakage and current leakage, so, the device with same direction peaks is usually unreliable one
（ 2 ） m 、 h值大， b值小的器件是質量和可靠性不好的器件（ 3 ）導數曲線上的峰與光導數曲線上的峰相對應，反向峰通常與器件的可靠性無關，而同向峰的存在於器件的質量和可靠性密切相關，有同向峰的器件通常是質量不好的器件，這類器件老化后特性明顯變差，這意味著導數曲線上的同向峰可以作為高功率半導體激光器可靠性篩選的一個輔助判據。It is found that, the modes of coaxial optical emission of dissimilar gaps, clustering at distinct numerical range, can distinguish 1st, 2nd and 3rd class welds of different welding quality effectively
結果表明，同軸光信號幅值的眾數在不同間隙的焊縫段，聚集在線性可分的不同的區間，可以有效分開焊接質量不同的類、類、類焊縫；信號的分段功率譜分析能夠較為直觀地反映焊接狀態的變化。For single lens, the change of beam quality lead to the varity of dimension and positions of spot of focused nd : yag laser. a telescopic system can produce constant dimension and position of beam waist
激光光束質量的變化導致了單透鏡的聚焦光束的束腰大小和束腰位置都發生變化，採用望遠鏡耦合系統可以得到大小和位置都不變的像方束腰。While they, too, can outsource their needs, quality becomes an issue, tietz said. " also, outsourced work loses that personal touch that makes laboratories different from each other.
雖然他們也能外購他們的需求，質量卻變成一個問題，提茲說「同樣，由於牙科實驗室之間的做法不同，外購使個人失去了所接觸的工作With the deepenness of water resource crisis and worseness of quality of water environment, water resource scarceness has become one of the problems which are focused on in the word
隨著水資源危機的加劇和水環境質量不斷惡化，水資源短缺已演變成世界備受關注的資源環境問題之一。The binding energies of excitons are calculated with the use of variational approach, we consider the mismatch of effective masses between the well and the barrier in the process of calculation, calculate and talk about the virial theorem values in square quantum - well wires in presence of a magnetic field
本文採用變分法，在外加磁場條件下分別計算了激子在無限深和有限深方形量子線中的基態束縛能。在計算的過程中進一步考慮了阱，壘中粒子有效質量不匹配的影響，最後我們計算並討論了外加磁場情況下的維里定理。分享友人