- 固定水流
- fixed: adj. 1.固定的；確定的，不變的，固執(zhí)的。 2.【化 ...
- spray: spray2 n. 1.小樹枝，小花枝。 2 ...
- fixed water spray system: 固定噴霧滅火系統(tǒng)
- water spray fixed system: 固定水噴霧系統(tǒng)
- fixed pressure water-spray system: 定壓水霧滅火系統(tǒng)
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fixed spray中文什么意思
- 固定水流
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例句與用法
- The necessary motion spray irrigation powered vehicle composition migration or half fixed spray irrigation unit , use each kind of water source ( well , ditch , river , pond , lake , pond ) carry on the spray irrigation to the size land parcel
配套移動噴灌動力車，組成移動或半固定噴灌機組，利用各種水源（井、渠、河、池、湖、溏）對大小地塊進行噴灌。 - Based on the analyses of the investment of nozzle tube net and relationship between the annual operation cost and tube diameter function of a fixed spray irrigation system , a mathematic model to calculate the economical tube diameter of a spray irrigation system is developed by using the minimum expense norm and nonlinear planning theory in engineering economic analysis , and a direct calculation formula for the economical tube diameter in unrestrained conditions is presented
摘要在分析了固定式噴灌系統(tǒng)的管網(wǎng)投資、年運行費用與管徑函數(shù)關(guān)系的基礎(chǔ)上，利用工程經(jīng)濟分析中費用最小化準則和非線性規(guī)劃理論，建立了求解噴灌系統(tǒng)管網(wǎng)經(jīng)濟管徑的數(shù)學模型，并給出了無約束條件直接求解經(jīng)濟管徑的計算式。