useful space 中文意思是什麼
useful space
解釋
有效空間-
It is generally impossible to obtain the analytic optimal guidance law for complex nonlinear guidance systems of homing missiles, and the open loop optimal guidance law is often obtained by numerical methods, which can not be used directly in practice. the neural networks are trained off - line using the optimal trajectory of the missile produced by the numerical open loop optimal guidance law, and then, the converged neural networks are used on - line as the feedback optimal guidance law in real - time. the research shows that different selections of the neural networks inputs, such as the system state variables or the rate of los ( line of sight ), may have great effect on the performances of the guidance systems for homing missiles. the robustness for several guidance laws is investigated by simulations, and the modular neural networks architectures are used to increase the approximating and generalizing abilities in the large state space. some useful conclusions are obtained by simulation results
對于復雜的非線性導彈制導系統，很難求得其解析的最優制導律，只能求得開環的數字解，不能適用於具有時變不確定性的導彈制導系統.利用神經網路的學習和推廣能力，對開環的數字最優制導律進行離線的學習，作為閉環的神經最優制導律在線應用.研究分別選擇系統狀態變量和視線角速率等不同的神經網路輸入對制導系統性能的影響，以及各種制導律的魯棒性問題，並採用模塊化神經網路結構提高神經網路的學習和推廣能力，模擬結果得到一些有益的結論 -
We are investigating the possibility of a commercial venture, where a solar sail would conduct station - keeping at points in interplanetary space that are useful for monitoring in the solar system
我們研究了一種商業風險的可行性，就是太陽帆能定點保持在太陽系內的某處，這對監測太陽系很有用。 -
Many new things found useful in the home have spun off from the machinery of space travel
家庭用的許多新東西已作為宇航機械的副產品被生產出來。 -
However, people are thirsty for the nature in the same. thus, water as a kind of natural substance come to be an element in architecture design. therefore, the research of water factor design in modern architecture space is useful and imperious. the thesis introduce the basic conception, actuality and frame of the research in the first part, and points out that the research category is water factor design in modern civilian architecture space. in the second part, the paper analysis the water factor in classical garden and folk house, and expatiate the revelation for modern design. in the third part, the paper expatiate the role of water in modern architecture. such as uptown or public building. in the forth part, the paper expatiate the basic theory or principle of the water factor design in some aspects such as water, human, aesthetics and zoology. in the last part, the paper classify the water factor design in modern civilian architecture, and expatiate the combination and design method
論文首先在緒論部分介紹了建築與水的關系、建築空間和建築空間水要素的基本概念、發展及研究現狀，並指出研究的主題是現代建築空間中的水要素；第二部分從歷史出發，介紹和分析中外古典園林和水鄉民居中水要素的特色及設計，並分別闡述對現代建築空間水要素研究的意義；第三部分分析闡述了現代建築空間中水要素的角色、作用，以及典型現代建築? ?居住小區和公共建築空間中的水要素；第四部分從水、人、美學和生態性等同現代建築空間水要素的設計密切相關的角度來分析現代建築空間水要素設計應遵循的基本原則，為此主要闡述建築空間水要素設計應滿足以水為中心、以人為主體，以及生態和可持續發展的要求；最後一章根據前文的分析，對現代建築空間水要素設計方法進行探討，形成現代建築空間水要素設計的組合方式和設計手法以及其它相關要素的設計要點。 -
Experiments indicate that the inverted index based on schema gets the best trade - off between space cost and query efficiency. this result is useful for the design of future search engine for xml
實驗結果表明本文提出的兩種倒排索引的空間開銷得到了顯著改善，其中基於模式的倒排索引獲得了最好的存儲空間與查詢效率的權衡。 -
The first natural frequency map in working space was drawn, which can be useful for selecting proper working position to avoid resonance or low - order harmonic oscillation
討論了頻率求解精度、收斂性與單元橫向彈性位移型函數以及單元數量之間的關系。 -
It divides the specific shapes of city space into streets, water systems, city skyline and corridors of sight lines. it also aims at the special landscape of hilly cities and analyzes their characteristics from macro and micro angles. at the same time, it explores some specific treatment principles and design methods, in hopes that it could provide useful references for the landscape constructions of china ' s hilly cities
本文主要是從城市景觀的角度，把在山地城市的景觀構成中占重要地位的線形景觀作為主要的研究對象，並根據城市空間的具體形態，將其分為街道、水系、城市天際線和視線走廊等幾個部分，針對山地城市特殊的地形條件，從宏觀、中觀、微觀等角度，分析它們各自的景觀特點，並結合大量實例探討了一些具體的處理原則和設計方法，以期對我國山地城市的景觀建設提供有益的參考。 -
( 2 ) it is the tactics of keeping the seed storehouse under the adverse environment that seed spreading has the dispersiveness of time, space heterogeneity of the seed spreading and the dormancy in summer, ( 3 ) the seed coat of lepidium pertoliatum l. and lepidium apetalum willd. make the seed bigger, which is useful to promote the seed sprouting and developing of seedling by absorbing the around moisture
具體表現為： （ 1 ）植物的生長發育以及植物的生長節律，均受到環境的影響； （ 2 ）種子的分批成熟，種子傳播具有空間隨機性以及種子具有夏季休眠的特性，都是種子在惡劣環境下保存種子庫的策略（ 3 ）抱莖獨行菜和獨行菜的種衣一方面可以使種子大粒化，另外還利於吸收水分有助於促進種子萌發和幼苗發育，這些對種群的延續具有重要的意義。 -
A deep foundation pit engineering in shanghai is adopted as an example. the factors of design, construction and nature environment on effect of internal force and deformation for a retaining structure are studied in detail through the example. these factors include the rigidity of retaining wall, rigidity and site of support rod, space - time effect of pit excavation, water environment of foundation pit etc. some useful conclusions of controlling deformation of foundation pit are obtained through the study
以上海某深基坑為工程原型，利用有限元程序，詳細探討了支護墻剛度、支撐剛度及位置、基坑開挖的時空效應、基坑周圍水環境等設計、施工和自然環境因素對支護結構內力和變形的影響，提出了一些控制基坑變形的方法措施，為深基坑工程的設計和施工提供了依據。 -
The results not only indicate that the transplanter can plant scallion with small space, and meet the requirements of the scallion practical planting, but also demonstrate that the optimum design method of the transplanter is correct and useful
優化結果表明，撓性圓盤式移栽機的栽植性能與兩圓盤夾角、特徵參數以及所栽植蔥苗的直徑和高度有關，並存在最佳組合。 -
" in reality the " sparse " data in the lower extreme of any 8 - bit non - linear space considerably limits its useful range.
"實際上"稀稀落落的"資料在任一8位非線性空間更低的極端可觀地限制它有用的?圍。 -
So, studying the manufacturing management information system based on internet, which can share and exchange useful information without any space and time restriction, improves the efficiency of management, and transforms and promotes the traditional manufacture, has become a trend
因此，研究基於internet的企業生產管理信息系統，突破企業在信息溝通和交流上的限制，提高企業的經營管理效率，利用信息技術來改造和提升傳統的製造業，成為管理信息系統的發展趨勢。 -
It has many unique advantages compared with laser interferometry. and it can achieve higher accuracy and resolution than traditional geometry moir. it has been proved to be very useful in many practical applications, such as microelectronics, ultra - precision manufacturing, bioengineering, medicine, space technology, and material science, etc. in this dissertation, key technologies of nanometer displacement measurement by grating interferometry are systematically investigated, which mainly include measuring theories, designing grating interferometer and new subdividing method for moir interference fringes
作為能夠實現納米級位移測量的技術之一，光柵干涉位移測量技術具有激光干涉儀不具備的獨特優點，可以獲得比幾何莫爾術更高的測量準確度、更高的解析度，在諸如微電子、超精加工、生物工程、未來醫學、航天技術、材料科學等眾多領域有廣泛的應用前景。 -
On the conclusion of making analysis and researches of the natural lighting design of the five familiar art atmosphere space and function space by discussing lots of instance, the thesis provides some design methods to be expected quite useful for the natural lighting design of the architecture design
在大量實例的基礎上，本文針對五種常見的藝術氛圍空間和五種常見的功能空間的自然採光的設計進行了剖析和研究，並提出了一些設計方法，希望對建築設計中的自然採光設計具有積極的作用。 -
Through the scheme, " rubbersoil " has been invented and tried out. from april 2003 to november 2004, a total of 4, 600 tonnes of waste tyres, which would have been disposed of in landfills, were recovered and turned into useful materials, thereby saving the costs of transporting the tyres to landfills and the landfill space used
通過該計劃，橡膠土得以在本地試驗生產和應用；從去年4月至本年11月中，有達4 ， 600噸的廢輪胎因此被回收切割成有應用價值的物料而不用棄置於堆填區；節省了將車胎運往堆填區的費用，並減低了堆填區被占的空間。 -
Though the hill equation was improved it cannot satisfied with the long distance navigation. here is considering the main satellite the following satellite and the target satellite format a triangle in the space which was useful in the relative navigation. the orbit of the following satellite was resolved by calculate the hill equation
盡管如此改進的hill方程依然不能滿足遠距離的相對導航，當從星在攔截目標星時，若目標星在攔截過程中發生軌道機動遠離主星，這里考慮到在已知從星軌道的前提下利用主從星以及目標星在空間形成的三角關系這一有利條件進行幾何法定位的研究，並通過數學模擬對其誤差大小進行了分析。 -
It means handling a consistent but useful problem space
它意味著處理一致但有用的問題空間。 -
The weight test has been used because bigger soldiers were often unable to take on certain roles. drivers " seats in tanks, for example, offer limited space. however, there is a recognition that brute strength can be useful for tasks such as carrying artillery for extended periods, and building bridges
報道說，有關方面之所以在徵兵過程中一直對申請者進行專門的體重檢測，主要因為那些塊頭太大的士兵往往無法勝任軍營中某些特定的工作，比如坦克內駕駛員座位所能提供的空間就極為有限。 -
2. expanding useful space in installation for special configuration
2 .特殊設計外形結構，方便安裝 -
Given that it ' s also useful to have the icons align with each other in each column, the ideal would seem to be for icons to align to the left or right of left or right aligned cells and automatically indent the cell contents to make space
假設圖標在每列中彼此對齊也有用處的話，理想狀況是圖標應該可以自動在左對齊或者右對齊的單元格中進行左對齊或者右對齊，並且，單元格內容自動縮進以確保空間。
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