区域大小：给定对象可接触的所有对象的总大小。

Reach size: the cumulative size of all the objects reachable from a given object.

youdao

轻度螺旋的DNA有利于基因的转录，因为可接触的表面积较大。

Lightly coiled DNA facilitates transcription because there is more surface area available.

youdao

可实质帮助想成功的人，因介绍可接触许许多多原本不认识的人，同时交往的都是有眼光、有梦想，有智慧的成功人士。

Can help to success of essence, can contact for many was introduced, and the people did not know the contacts are eye, a dream, there is wisdom and successful personage.

youdao

This is true whether you look at the universe of the mutual fund managers that we might have available to us as individuals or whether it's institutional data, such as those that I just cited; that concept is survivorship bias.

的确如此,不论你在观察,可接触到的基金经理个人,还是观察一些机构数据,就像我刚引用过的那些,这个现象就是生存偏差

耶鲁公开课 - 金融市场课程节选

Another subset of T-cells called T helper cells will recognize that signal by direct contact with it, and they will become activated and proliferate.

另外一个T细胞的亚群是辅助性T细胞,辅助性T细胞可识别与其接触的抗原信号,并被激活,开始增殖

耶鲁公开课 - 生物医学工程探索课程节选