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。

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，我仍友们一起，学校保持优等绩，工作中表现出色。

And that's preformed insulin in the pancreas.

那是胰腺中预先胰岛素。

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，所谓预型件来完。

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

1. 编程于动物先天禀赋，对刺激有确定预先反应。

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。这涉及将预型件放入模具中，后关闭模具。