例句與造句

1. According to a series of experimental data , the effect of following factors on the temperature in the ultra - low temperature box and cop are analyzed : the mixture composition , the pressure ratio and the return fluid extraction ratio of the rectifying column , the refrigeration capacity and the flow rate through throttle valve
   并根據(jù)一系列實(shí)驗(yàn)結(jié)果，分析了工質(zhì)配比、循環(huán)壓比及精餾柱回流液的抽取率、加熱量和節(jié)流元件對(duì)低溫箱內(nèi)溫度和系統(tǒng)cop的影響，為今后的進(jìn)一步研究指明了方向。
2. It's difficult to find returning fluid in a sentence. 用returning fluid造句挺難的