Objective: To observe the effects of cooking oil fume (COF) on cellular immunity of rats.

目的：观察烹调油烟对大鼠细胞免疫功能的影响。

youdao

In this paper, the structure, features, key process, applications and developing direction of COF are summarized.

本文就COF的结构，特点，所用材料，关键工艺，应用状况及其发展趋势进行了综述。

youdao

The COF/MEMS packaging technology is well-suited for many microsystem packaging applications such as micro-optics and radio frequency(RF) devices.

COF/MEMS封装技术非常适合于诸如微光学及无线射频器件等很多微系统封装的应用。

youdao

The last time shares of COF earned a 2 out of 10 rating was back in mid-August.

FORBES: Selling Pressure Hitting Credit Card Stocks

Below is a three month price history chart comparing the stock performance of DFS, versus AXP and COF.

FORBES: See How Discover Financial Services Ranks Among Analysts' Top Picks With Strong Buyback Activity

Separately, Capital One (COF) announced it would release second-quarter earnings a day early after the market closed.

FORBES: What's In Your Wallet? If It's a Capital One Card, You May Be Due a Refund