例句與用法

1. The quantitative relational expression is obtained about the coefficient of additional pressure loss and the froude number by experiment , and the relation is made clear between the average speed of waste plastics particles and the pressure loss of per unit length
   由實(shí)驗(yàn)得出廢塑料輸送管內(nèi)氣力輸送附加壓力損失系數(shù)與弗勞德準(zhǔn)數(shù)的定量關(guān)系式，廢塑料顆粒平均速度與單位管長(zhǎng)壓力損失的關(guān)系。
2. This paper introduced the experimental results for ground - source water / water heat pump , analyzed the effects of the variety flux on system performance coefficients , which showed that the optimal operation flux is 1000 ( l / h ) and provided the heat exchange rate per unit depth of coil , 45 80 ( w / m ) . compared the exchang - heat - curveline in winter with that in summer , through which showed the advantages of gshp in mode of heating and cooling on long - period operation
   本文介紹了地源水-水熱泵全年冬夏暖冷聯(lián)供的實(shí)驗(yàn)結(jié)果以及過渡季地溫的恢復(fù)情況，分析了系統(tǒng)流量對(duì)熱泵性能參數(shù)的影響，獲得了最佳運(yùn)行流量為1000 （ l / h ） 。并實(shí)測(cè)得到單位管深換熱率及埋管的有關(guān)性能指標(biāo)。
3. This experiment include many contents , in a word , that is summer condition experiment , winter condition experiment > summer - winter transition condition experiment and winter - summer transition condition experiment , furthermore summer condition experiment still include flux changing experiment and winter condition experiment still include thermal balance experiment this article dealt with the data of the test , calculating out energy absorbing ( energy discharging ) of buried pipe in winter condition ( summer condition ) , input power of heat pump x heat exchanging of piece buried pipe length x co - efficiency performance ? op ( energy efficiency rate ? er ) and average heat exchanging coefficient ; in additiont this article compares the inlet water temperature and outlet water temperature of underground the first layer and the second layer buried pipe when heat pump was running , the results are that the heat exchanging ability of the second layer buried pipe outgos the first layer buried pipe , and heat exchanging is more stable ; and still analyse earth temperature resuming in the transition season . the results are earth temperature resume fast in the first week when the heat pump runs off
   本文測(cè)試內(nèi)容相當(dāng)多，概括地說就是四個(gè)工況的測(cè)試，即夏季制冷工況的測(cè)試、冬季供熱工況的測(cè)試、夏?冬過渡季測(cè)試和冬?夏過渡季測(cè)試；另外在夏季工況的測(cè)試中還進(jìn)行了變流量測(cè)試，在冬季工況的測(cè)試中還進(jìn)行了熱平衡測(cè)試。本文對(duì)測(cè)試數(shù)據(jù)進(jìn)行了處理，計(jì)算出了冬(夏)季工況埋管吸(放)熱量、熱泵空調(diào)器供熱量(制冷量) 、熱泵空調(diào)器輸入功率、埋管單位管長(zhǎng)換熱量、供熱性能系數(shù)(制冷能效比)和平均傳熱系數(shù)等；另外，還比較了熱泵運(yùn)行時(shí)地下一二層埋管進(jìn)出水溫度變化情形，得出地下二層埋管換熱能力優(yōu)于地下一層埋管，且換熱很穩(wěn)定；并分析了過渡季地下一二層埋管溫度恢復(fù)情形，得出熱泵系統(tǒng)停機(jī)一周內(nèi)地溫恢復(fù)特別快。