Yet there are pull factors, too.

然而，也有拉动因素。

There are a number of push and pull factors.

有许多推拉因素。

So we have to look at the pull factors.

所以我们必须看看拉动因素。

Is it actually true that they are acting as a sort of a pull factor?

他们真的起到了某种拉动因素的作用吗？

And then the existence of the facilities sort of as a pull factor, drives the production of more ethane.

然后设施的存在有点像拉动因素，推动了更多乙烷的生产。

He warned, however, that the United States cannot rely solely on foreign partners to solve the " pull factors" created by the broken U.S.immigration system.

然而，他警告称，美国不能仅仅依靠外国伙伴来解决美国支离破碎的移民体系造成的" 牵引力因素" 。

Minister Piantedosi has proposed a decree to limit the possibility of NGOs to operate in the territorial borders, because there is this assumption that they still act as a pull factor for migration.

皮安特多西部长提出了一项法令， 以限制非政府组织在领土边界开展活动的可能性，因为有这样一种假设， 即它们仍然是移民的拉动因素。