variable adj. 1.易变的,变化无常的,无定的 (opp. constant, steady)。 2.可变的,能变的;变换的。 3.【数学】变量的;【天文学】变光的;【生物学】变异的。 Prices are variable according to the exchanges. 物价跟着汇率变动。 a man of variable character 反复无常的人。 a rod of variable length (伸缩)如意棒。 a word of variable construction 可以作种种解释的词。 variable capital 可变资本。 a variable budget 临时预算。 n. 1.易变的东西。 2.【数学】变量,变数,变项,变元 (opp. constant);【天文学】变星 (=variable star);【航海】(方向不定的)变风,不定风 (opp. trade wind); 〔pl.〕 (贸易风带中的)变风带。 adv. -ably ,-ness n.
The influences of structure variables such as impeller types , baffle configurations , gas sparger , and operational variables such as gas rate , particle fraction on critical suspension speed of floating particle in an agitated vessel were investigated 摘要探讨了搅拌桨型、挡板和气体分布器等结构因素及气体流量、颗粒质量分数等工艺因素对下沉颗粒三相体系临界搅拌转速的影响。
Theory calculation and derivation demonstrate that the heat conduction of membrane exerts little influence on performance . the characteristics of mass transfer through membrane are mixed flow including knudsen flow and poiseuille flow , which moreover , vary with operational variables 理论推导与计算表明:膜的导热性对真空膜蒸馏过程的影响可以忽略,膜蒸馏过程膜内质量传输机制是努森流与粘性流共同作用的混合流机制。
Based on the polymerization reaction mechanism of pet , the model includes all main reactions and major side reactions with measured operational variables as its input and polymerization degree ( dp ) , average molecular weight and parameters of molecular weight distribution as its output 模型从聚合反应机理出发,考虑了所有的主反应和主要的副反应,以实测的工艺操作参数为输入,以各反应釜、特别是终端产品的聚合度、平均相对分子质量及相对分子质量分布参数为输出。