covariance of estimator
[统计] 估计量协方差
热门查询
- taft n. 塔夫脱（姓氏）
- sodality n. 联谊会；友好；团体；伙伴
- climatic adj. 气候的；气候上的；由气候引起的；受气候影响的
- irrationality n. 不合理，无理性
- grayling n. 眼蝶；河鳟；褐色蝶类
- trekking n. 艰苦跋涉，徒步旅行；艰难旅程 v. 艰苦跋涉（trek的现在分词）
- bosun n. 水手长（等于boatswain）
- demountable adj. 可卸下的
- decrepitude n. 衰老，老朽
- footrest n. 搁脚物
- house n. 住宅；家庭；机构；议会；某种用途的建筑物 vt. 覆盖；给…房子住；把…储藏在房内 vi. 住 n. (House)人名；(英)豪斯
- riveter n. 铆钉枪；铆工
- memorial n. 纪念碑，纪念馆；纪念仪式；纪念物 adj. 记忆的；纪念的，追悼的
- centenary n. 一百年；百年纪念 adj. 一百年的
- drummer n. 鼓手；旅行推销员；跑街 n. (Drummer)人名；(德)德鲁默尔；(法)德吕梅；(英)德鲁默
- outweigh vt. 比…重（在重量上）；比…重要；比…有价值
- espresso n. （用汽加压煮出的）浓咖啡 n. (Espresso)人名；(法、意)埃斯普雷索
- fully-fledged adj. 成熟的；羽毛丰满的；发育全的
- conducive adj. 有益的；有助于…的
- grownup 成人
考试词汇表
- toluenesulfonyl methylaniline
- tolyl hydrazine hydrochloride
- tomb chamber (burial chamber)
- tomentose caudate croton herb
- tommasi lead refining process
- tongue and groove face flange
- tongue joint with movable lug
- tongue with yellowish dry fur
- tongue-and-slipper type joint
- tonguing and grooving machine
- toning of photographic images
- tonnage of freight despatched
- tons per centimeter immersion
- tonsil dissector and elevator
- tonsil elevator and dissector
- tonsil stopbleeding guilotine
- tonsillitis with stiff tongue
- tonsillitis with yin asthenia
- took my courage in both hands
- took the smile off their face
