查询词典 biased sample

Stereotypes are usually defined as oversimplified, and often biased, conception s of reality that are resistant to change

定型通常被定义为关于现实的过于简化，而且常带有偏见但又抗拒改变的观念。

Why does she a pen-name?When the first "Harry Potter" novel was published, the publisher asked her to use initials rather than her first name. This was because boys would be biased against a book written by a woman.

第一部哈里波特小说出版时，发行商建议她用缩写的大写字母代替她的名字，因为考虑到小男孩看见作家是女作家时，可能会有些歧视。

Although more recent studies of women with breast cancer who do not necessarily have a strong family history of the disease have yielded considerably lower estimates, these also may be biased and tend to overestimate penetrance.

尽管最近有一些关于女性乳腺癌的研究，不一定是在家族病史非常强的家庭中进行，其所估计的外显率相对较低，却也可能存在偏颇而高估外显率。

The piston rod (9) is biased in a position pointing away from the cylinder.

活塞杆(9)被偏压到一个背对缸体定向的位置内并且直线缓冲器与一个推杆(7)耦合。

Another feature of electrolytic CAPACITOR s, both aluminium and tantalum, is that most of them are polarized and require a DC bias for correct operation - a reverse bias may do damage and will certainly increase leakage (unpolarized electrolytic CAPACITOR s, which may be biased in either direction, do exist but they are uncommon, and considerably larger than the polarized variety).

电解电容还有一个特点，那就是绝大多数都是有极性的，其两端必须施加直流电压才能正常工作。如果极性接反，电容就可能损坏，其漏电流也会增加。无极性电解电容虽然已经问世，但是相比之下不常用，而且外形尺寸也比有极性电容大。

Another feature of electrolytic capacitors, both aluminium and tantalum, is that most of them are polarized and require a DC bias for correct operation - a reverse bias may do damage and will certainly increase leakage (unpolarized electrolytic capacitors, which may be biased in either direction, do exist but they are uncommon, and considerably larger than the polarized variety).

电解电容还有一个特点，那就是绝大多数都是有极性的，其两端必须施加直流电压才能正常工作。如果极性接反，电容就可能损坏，其漏电流也会增加。无极性电解电容虽然已经问世，但是相比之下不常用，而且外形尺寸也比有极性电容大。

The visits by Raffarin and Poncelet coincide with tensions in relations caused by the torch relay disruption and the French media's biased coverage of China following the riots in Tibet.

由于巴黎火炬传递的破坏事件和法国媒体对于中国西藏暴乱事件的带有偏见的不实报道使中法双方的关系紧张，而R 和P 都选择了在这一时期同时访华

The theatrical foundation of this paper is option pricing model. This paper focuses on the Black-Scholes model, details the basic postulation, principle and pricing formula. And it is pointed out that the postulation that volatility is constant can't reflect the varying market volatility. Violation of this postulation will lead to biased pricing results.

期权定价模型是本文分析的理论基础，文中以Black-Scholes模型为主，分析了期权定价模型的基本假设、原理与定价公式，指出波动率为常数的假设不能反映市场波动率的变化状况，对该假设的违背将使定价结果产生偏差，因此，波动率在期权定价中有重要的作用。

That committees will issue biased or uneducated advice, or that administrators will inappropriately use committees to bolster preconceive d policy preferences.

咨询委员会可能会给出有偏见的乃至无知的建议，或者行政官员有可能运用咨询委员会来支持自己预设的政策偏好。

By the statistical analysis of motion vector probability distribution of sequences, its directional characteristics are found. A novel algorithm-improved cross-diamond search algorithm is proposed by using small cross-search pattern to search small fiction vectors as the initial step based on the center-biased characteristics of motion vector probability distribution.

通过对序列运动矢量概率分布分析，发现了该概率分布的方向性特性，提出了一种新的块匹配运动估计算法―改进的十字－菱形搜索算法。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"