quantity n. 1.量 (opp. quality); 分量,數(shù)量;額;【物理學(xué)】值,參量。 2.〔pl.〕大量,大宗,大批,許多。 3.定量,定額。 4.【數(shù)學(xué)】量;表示量的數(shù)字[符號(hào)];【邏輯學(xué)】(名詞、特別是命題主語的)量。 5.【音韻學(xué)】音節(jié)的長(zhǎng)短;表示音節(jié)長(zhǎng)短的符號(hào);【語音】(元[母]、音節(jié)等的)音量。 6.【法律】期限。 a known quantity 已知數(shù)。 an unknown quantity 未知數(shù);〔比喻〕難預(yù)測(cè)的人[物]。 a negligible quantity 可忽略的量;〔比喻〕無足輕重的人〔物〕;可忽略的因素。 a quantity of 一些。 in quantities 大量。 in quantity 很多。
By optimizing the parameters such as the additive quantity of corn straw fibre , the content of amylum , the dosage of vesicant , the selecting of accessorial material , and the temperature of frothing , the cushion packaging material that has decompounding capability was prepared , and the factors influencing the mechanical strength of this material was analyzed by the method of static compress test 通過對(duì)玉米秸稈纖維添加量、淀粉含量、發(fā)泡劑用量、輔料選擇、發(fā)泡溫度等參數(shù)的優(yōu)化,實(shí)驗(yàn)制備了具有可降解性能的緩沖包裝材料,并利用靜態(tài)壓縮實(shí)驗(yàn)方法對(duì)該材料力學(xué)強(qiáng)度的影響因素進(jìn)行了分析。
Abstract : by analyzing theae factors which influence the reduction process and ferrous powder ' s quality , reduction temperature , reduction time , scale thickness and additive quantity are chosen to discuss their effect on the chemical composition and the crashed property of sponge iron 文摘:分析了馬鋼軋鋼鐵鱗的原料狀況,選取還原溫度、還原時(shí)間、料層厚度和添加劑等工藝因數(shù)來研究它們對(duì)海綿鐵化學(xué)成分和破碎性能的影響規(guī)律,為海綿鐵的工業(yè)生產(chǎn)提出合理的工藝制度。