datum width 中文意思是什麼
datum width
解釋
基準寬度-
Grooved pulleys for classical and narrow v - belts system based on datum width
普通和窄v帶輪基準寬度制 -
Heat - sink and package datum, pad spacing, gap, length, width, spread, tweeze, missing, broken or un - plated pad
吸熱和封裝數據，襯墊間距，裂口，長度，寬度，伸展，鑷子除去，缺少的，斷掉的，未電鍍引線 -
. belt drives. pulleys for v - belts system based on datum width. geometrical inspection of grooves
皮帶傳動裝置. v形皮帶用槽輪 -
This paper is consisted of two major parts : one deals with the general working performance of the fmghp by setting up mathematic model and developing computer procedure, getting the datum related to the capillary flow and heat transfer, analysing the working characteristics of fmghp in different working temperature, heat flux and inclination angle etc. in this part, the prediction of capillary and boiling limit are also included. the other major part studies the flow and heat transfer characteristics in the micro - film region formed by the meniscus attached on the metalic fin in the micro rectangular groove. investigations on the influence of width of groove and other factors on heat transfer in this region have been made. the importance of this micro - region in the heat transfer of the entire heat pipe has been unveiled. the heat transfer characteristics gotten by this research could be used in design and application and also optimization of this kind of fmghp
本文在大量查閱現有國內外文獻的基礎上，總結並綜合前人有關微槽平板熱管理論研究方面的成果，對單面刻有槽道的微槽平板熱管進行了較為深入和細致的研究。本文的研究共分兩大部分，其中第一部分考察了該型熱管的整體工作表現，通過建立數學模型和開發相應的計算程序，得到了熱管內部毛細流動和傳熱的數據，分析了熱管在不同工作傾角、不同加熱熱流以及不同工作溫度等情況下工作特性的變化規律，考察了汽液界面上的剪切作用對熱管傳熱量的影響，並且進一步在理論上預測了該型熱管的毛細和沸騰極限。 -
In this paper, the problems existing in the design, manufacture and use of the gauge groove and the corresponding prove method, are discussed. then it introduces the groove method which bases on the groove center as the datum and uses line depth to control line width
論述了刻線量規設計、製造、使用中存在的問題和改進方法，並介紹了以刻線中心為基準，以線深控制線寬的刻線方法。
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