air porosity 中文意思是什麼
air porosity
解釋
孔隙率-
Abstract : porosity of die castings caused by air entrapped into the liquid metal in the shot sleeve is common problem of die csating process
文摘:壓室中氣體捲入金屬液內而造成壓鑄件內部氣孔是壓鑄過程常見的問題。 -
It concluded 56 that ferrisols aggregate breakdown was caused by the pressure produced by the entrapped air in the soil porosity when fast wetting, which indicated that ferrisols erosion was most severe in the sudden heavy rain in the nature
富鐵土團聚體的崩解主要是由土壤快速濕潤時，擠壓孔隙內的閉塞空氣而產生的壓力，說明富鐵土土壤在突降暴雨時侵蝕最嚴重。 -
Ploughing deeper and corn residues might promote formation of soil aggregated structure, decrease soil bulk density, relax solum, decrease soil porosity, raise soil permeability, improve soil structure and holding - water capability, create better soil biology condition for growth of crop, and coordinate water, fertilizer, air and heat etc. to prevent the fertility deterioration of the corn belt phaeozem and ameliorate soil, it is need to reform tillage and fertilizer application for the corn belt phaeozem in the central part of jilin
針對吉林玉米帶黑土土壤退化現象，從黑土玉米的耕作制和施肥制的改革入手，並結合農村現有機械和技術水平，採用玉米「輕主重輔」三三耕作制和玉米「一穩二減三補」施肥技術，提出吉林玉米帶黑土土壤調控技術體系。 -
Standard test method for effective porosity and effective air voids of compacted bituminous paving mixture samples
壓實瀝青鋪路混合料樣品的有效孔隙率和有效氣隙的標準試驗方法 -
Under this condition, the preventive measure was increasing the porosity of coal mass and deceasing the circulating channels of gas and air
提出了增加卸載區的范圍，促使煤體裂紋穩定擴展，降低單位煤體儲能從而控制沖擊礦壓發生的原理。 -
An amendment should decrease bulk density, increase total porosity, and increase water and air content.
改良劑能降低堆積密度，增加總孔隙度，增加水和空氣的含量。 -
Mix mineral additive into concrete has great effect on the pore structure, especially the addition of sodium sulfate coarsening the pore structure enormously, and increase the total porosity. after mixing sodium sulfate, the chloride ion diffusion coefficient of air entraining concrete increased, impermeability reduced ; but mixing sodium nitrite and sodium chloride can
Na _ 2so _ 4摻入后，引氣混凝土的氯離子擴散系數增大，抗滲性降低;而nano _ 2和nacl能夠細化水泥石的孔結構，對混凝土的抗滲性有利，但提高幅度不大。 -
Air space porosity
空間孔隙度 -
08. 02 open - cell content porosity of rigid cellular plastics by the air pycnometer, test method for
用空氣比重瓶測定硬質泡沫塑料的開孔率孔隙率的試驗方法 -
This paper consists of the following parts : firstly, the physical properties ( particle size distribution, specific area, porosity ratio and pore volume ) and pyrolysis characteristics have been studied in experiments with four kinds of coals. according to experimental results, the advantages of combustion characteristics of micro - pulverized caols are analysed on the theory. secondly, the reconstructing plan is designed in details for a conventional system of the hot air transferring pulverized coal to reduce nox emission
本文主要包括以下內容：首先，通過基礎的實驗分別對四種具有代表性煤種一、三次風所含煤粉的物理特性（粒徑分佈、孔隙率、孔容積和比表面積）和熱解特性進行研究，從理論上分析煤粉細化后，較細顆粒（即三次風含粉）在燃燒特性上的優越性，為三次風含粉用於再燃燃燒打下基礎。
分享友人