1.a particular point in time;
the moment he arrived the party began
2.an indefinitely short time;
wait just a moment
3.at this time;
the disappointments of the here and now
4.having important effects or influence;
decisions of great consequence are made by the president himself
5.the moment of a couple is the product of its force and the distance between its opposing forces
6.the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value
契机 moment 通常指事物发展过 程中的关键 、 枢纽或决定性的环节。G.W.F.黑格尔在他的著作中使用该词指处在整体中的、与整体的其他部分密切联系着的环节。他把哲学史比作是包含着许多小圆圈的大圆圈,认为历史上出现的每个哲学体系,同其他的哲学体系互相关联着,都是哲学史这一全体或整体的一个必然环节。在事物由量到质的发展和转化过程中,关节点就是一种连接由量变过渡到质变的契机。在人们的社会实践活动和科学理论研究中,