quantity n. 1.量 (opp. quality); 分量,数量;额;【物理学】值,参量。 2.〔pl.〕大量,大宗,大批,许多。 3.定量,定额。 4.【数学】量;表示量的数字[符号];【逻辑学】(名词、特别是命题主语的)量。 5.【音韵学】音节的长短;表示音节长短的符号;【语音】(元[母]、音节等的)音量。 6.【法律】期限。 a known quantity 已知数。 an unknown quantity 未知数;〔比喻〕难预测的人[物]。 a negligible quantity 可忽略的量;〔比喻〕无足轻重的人〔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 通过对玉米秸秆纤维添加量、淀粉含量、发泡剂用量、辅料选择、发泡温度等参数的优化,实验制备了具有可降解性能的缓冲包装材料,并利用静态压缩实验方法对该材料力学强度的影响因素进行了分析。
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:分析了马钢轧钢铁鳞的原料状况,选取还原温度、还原时间、料层厚度和添加剂等工艺因数来研究它们对海绵铁化学成分和破碎性能的影响规律,为海绵铁的工业生产提出合理的工艺制度。