model n. 1.模型,雛型;原型;設(shè)計圖;模范;(畫家、雕刻家的)模特兒;樣板。 2.典型,模范。 3.(女服裝店雇用的)時裝模特兒。 4.樣式,型。 5.〔口語〕極相似的人[東西]。 adj. 模型的,模范的。 a clay model 【雕刻】黏土原型。 a working model 機器的運轉(zhuǎn)模型。 a model shot 【攝影】模型鏡頭。 a model aeroplane 模型飛機。 a model test 典型試驗。 The boy is the perfect model of his father. 這孩子活像他父親。 after [on] the model of 仿效…,拿…當做模范。 stand model 做模特兒。(〔英國〕 -ll-) vt. 1.作…的模型[雛型]。 2.(依照模型)制作,仿造,建造 (after;on;upon)。 3.設(shè)計,仿照,拿…做模范。 vi. 做模型;做模特兒。 delicately modeled features 清秀的面貌。 model a garden after the manner of Kew 仿照(倫敦) Kew 植物園設(shè)計的花園。 model oneself up (on) sb.仿效某人。
First this paper analyses weighted deviation model ( wdm ) put forward by len swanson & martha l . stocking . it is found that when the constraints are made up of question numbers , question grades and other information with different dimensions , the calculated values of dl , du cannot be compared . then the wdm model is further improved and the constraints of the model are simplified in the way that only the question grades are strictly constrained while other constraints are reflected by the distribution of grades 首先,本文對lenswanson & marthal . stocking提出的離差加權(quán)模型( weighteddeviationsmodel ,簡稱wdm模型)進行分析,發(fā)現(xiàn)當約束條件既有題數(shù),又有題分和信息量時,由于各約束條件的單位(量綱)不同,根據(jù)約束條件計算出的d _ l _ j , d _ u _ j的值不可比。