blowing pressure 中文意思是什麼
blowing pressure
解釋
吹灰壓力-
Opening of the tube can be aided by swallowing, yawning, performing the valsalva manoeuvre closing the mouth, holding the nostrils pinched closed and blowing to build up pressure in the mouth and nose or the toynbee manoeuvre closing the mouth, holding the nostrils pinched closed and swallowing
另可嘗試乏氏動作valsalva manoeuvre :閉起雙唇，並掐著鼻子吹氣，直至耳朵出現噗一聲為止又或嘗試閉起雙唇，並掐著鼻子吹氣，繼而不斷吞咽。 -
This thesis introduces the working principle, craftwork requirement, modeling process, control strategies and the realization of lf refining furnance bottom blowing argon control system. through the study and analysis of bottom blowing argon process control system, the thesis discusses the mean neural network model of controlled object and the mathematical models of the exectors, pwm adjustable pressure controller and pcm adjustable flux controller according to the relevant liquid knowledge and relevant data, including design data, test data and running data. to begin with the craftwork reguirement of bottom blowing argon and the actual instance of the control system, it presents the strategies of fuzzy parameters self - adaptive pid control used in pressure difference inner loop and fuzzy plus pi compound control used in flux outer loop which are based on the above modeling in order to carry out the accurate control of argon flux
本文介紹了lf精煉爐底吹氬過程式控制制系統的工作原理、工藝要求、建模過程、控制策略以及控制系統的實現。通過對精煉爐底吹氬過程式控制制系統進行研究與分析，並根據流體力學的有關知識以及有關數據（其中包括設計數據、試驗數據和運行數據） ，建立起了被控對象的平均神經網路模型和執行機構（即pwm調壓器和pcm調流器）的數學模型。在此模型的基礎上，從底吹氬工藝要求和控制系統的實際情況出發，提出了壓差內環模糊參數自適應pid控制策略和流量外環模糊pi復合控制策略，以實現氬氣流量的精確控制。 -
( 2 ) on the leading edge, the film cooling effectiveness at the zone immediately downstream of the cooling holes is affected by blowing ratio and mainstream reynolds number, while the effects are not important in the downstream zone far from the cooling holes. ( 3 ) on the front half of pressure surface, the effectiveness increases with decreasing blowing ratio at the downstream near the cooling row and it is contrary at the downstream far from the cooling row. ( 4 ) on the rear pare of the pressure surface, the effectiveness decreases with increasing blowing ratio and does not vary so much downstream in the cases of higher blowing ratio
研究結果表明葉片吸力面端壁附近區域壓力系數分佈呈現出較強的三維特性，動葉吸力面尤其明顯；氣膜孔流量系數隨吹風比的增加而增大，在高吹風比情況下，流量系數逐漸趨于常數；在不同型面區域，冷卻效率分佈有較大的差異，而且吹風比與主流雷諾數的影響程度也不盡相同；低吹風比下，孔出口下游附近可以得到較好的冷卻，中、高吹風比下，冷氣射流在加速流動主流的作用下返回壁面進行二次冷卻，孔下游較遠區域可以得到較好的冷氣覆蓋。 -
Through analyzing the structure of open caisson, and according to sinking stress principle, the paper introduced in the open caisson construction process sinking, correcting error, survey control as well as peculiar circumstance processing technical measure, such as in open caisson construction the inner - mold for sanding, framework supporting and steel binding, and concrete casting ; in open caisson sinking - control the sand in edge foot inner - mold, sand - pumping sinking, and pressure hydraulic monitor breaking and pressure - blowing sinking by air pressure blower etc
摘要根據下沉受力原理，分析了沉井結構，介紹了沉井施工過程中的下沉、糾偏、測量控制以及特殊情況處理的技術措施，如沉井製作中的填沙內模，模板支設和鋼筋綁扎，混凝土澆注；沉井下沉控制中的刃腳內模沙土，抽沙泵抽沙下沉，高壓水槍破壓、空壓機吹壓下沉等。 -
It is noted that high pressure mixed gas has to be used in connection with forced blowing wind for gas combustion chamber to produce qualified casting
特別強調，即使用高壓煤氣，也必須用強制送風的方法供給煤氣燃燒器所必須的空氣量，才能生產出合格的鑄件。 -
The company uses different clothmaterials to produce different kinds of bag - type dust removers including bag - type mechanical vibrating dust removes, bag - type high - pressure blower counter blowing rotary dust renovers, filtering cylinder type dust removers etc. the machines dust removing efficiency has reached 99 %
本公司用不同的濾料生產各種袋式機械振打除塵，袋式高壓風機反吹回轉除塵及濾筒式除塵器，除塵效果高達99 % 。 -
Abstract : it describes the effect of the operation at low air pressure and low blowing capacity of unit volume on the direct recovery index, and proposes the design basis of air pressure, blowing rate of converter
文摘:闡述了低風壓、低單位容積風量操作對轉爐直收率等指標的影響，提出轉爐吹煉風壓、風量設計的依據。
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