No one can say which company will preform well and which will not.

没人可以百分之百预测一家企业未来业绩。

And that's preformed insulin in the pancreas.

那是腺中预先形成素。

At my worst I was still spending time with friends, keeping up straight A's at school, and preforming well at my job.

我最糟糕时候，我仍然和朋友一起，学校保持优等成绩，工作中表现出色。

Programming consists in an animal's innate endowment with determinate preformed responses to stimuli.

1. 编程物先天禀赋，对刺激有确定预先形成反应。

One is resin transfer molding or RTM This involves placing preforms inside a mold which is then closed.

一种是树脂传递模塑，简称RTM。这涉及将预成型件放入模具中，然后关闭模具。

This is done by placing the fibers tapes or mats onto a mold in the required orientation creating what is known as a preform.

这是通过将纤维带或织物以所需方向放置模具上，形成所谓预成型件来完成。