variable adj. 1.易變的,變化無(wú)常的,無(wú)定的 (opp. constant, steady)。 2.可變的,能變的;變換的。 3.【數(shù)學(xué)】變量的;【天文學(xué)】變光的;【生物學(xué)】變異的。 Prices are variable according to the exchanges. 物價(jià)跟著匯率變動(dòng)。 a man of variable character 反復(fù)無(wú)常的人。 a rod of variable length (伸縮)如意棒。 a word of variable construction 可以作種種解釋的詞。 variable capital 可變資本。 a variable budget 臨時(shí)預(yù)算。 n. 1.易變的東西。 2.【數(shù)學(xué)】變量,變數(shù),變項(xiàng),變?cè)?(opp. constant);【天文學(xué)】變星 (=variable star);【航?!?方向不定的)變風(fēng),不定風(fēng) (opp. trade wind); 〔pl.〕 (貿(mào)易風(fēng)帶中的)變風(fēng)帶。 adv. -ably ,-ness n.
Discussion on energy efficiency of primary pump system with variable flow in air conditioning 淺談空調(diào)變流量一次泵系統(tǒng)的節(jié)能
Open circuit , close circuit , direct return , inverse return , variable flow systems , booster pumps , valves , joints , etc 開(kāi)及閉式水路,直接間接回流、變量系統(tǒng)、加壓泵、閘制、接口等
Explores the location of pressure difference control points in variable flow rate systems with a hot water heating piping model 摘要結(jié)合一個(gè)熱水供暖熱網(wǎng)模型,探討了變流量壓差控制點(diǎn)的設(shè)置位置。
Air distribution and air diffusion . aerodynamic testing and rating of constant and variable flow rate single or dual duct boxes and single duct units 空氣的分配和擴(kuò)散.恒定和可變流量單管或雙管箱和單管裝置的空氣動(dòng)力學(xué)試驗(yàn)及評(píng)價(jià)額定值
Analyzing the performance curves of pumps and network in a variable flow pumping system , concluding the influence factors of energy saving and the optimal ranges of variable frequency drive ( vfd ) 摘要通過(guò)分析變頻水泵及管網(wǎng)系統(tǒng)在變工況下的特性曲線,得出影響水泵變頻節(jié)能效果的主要因素和變頻調(diào)速的適用范圍。
Variable flow chilled water system ( vwv ) is an effective energy - saving measure , which has a smaller size of pipe and equipment than the normal ones for it has considered the dispersing rate of the load in the systems 空調(diào)變水量系統(tǒng)是一種有效的節(jié)能手段,并且由于它考慮了系統(tǒng)的同時(shí)使用率,系統(tǒng)管道及設(shè)備將比常規(guī)的小。
In addition , the usaf continues to fund development work of the aerojet ( formerly atlantic research ) variable flow ducted rocket ramjet system as a future propulsion option for an extended range aam 此外,美國(guó)空軍繼續(xù)投資于航空噴氣研究所(原來(lái)的大西洋研究所)的可變噴流管火箭發(fā)動(dòng)機(jī)系統(tǒng),將其作為增程空空導(dǎo)彈的未來(lái)推進(jìn)選項(xiàng)。
From this paper , a new optimized method and its program in the designing chilled water system were presented , and a scheme to convert a constant flow system to variable flow system was also brought forward 通過(guò)本文的研究,提出了一種新的空調(diào)冷水系統(tǒng)最優(yōu)化設(shè)計(jì)方法,并編制了計(jì)算軟件;提出了將定水量系統(tǒng)改造為變水量系統(tǒng)的方案。
Second , the conclusion is drawn that the fit model can be gained after the simulation of different models compared with the measured temperature in practice . the components model of variable flow system and control system are set up 然后建立變流量系統(tǒng)部件的數(shù)學(xué)模型及控制系統(tǒng)部件的數(shù)學(xué)模型并進(jìn)行控制回路的模擬,并提出基于simulink的控制參數(shù)整定方法。