Don't assume the readers will already be aware of them. Don't overuse jargon or technical terms. Include the most important only. Write a persuasive proposal. Keep in mind that you're asking somebody to give you money.
Persuasive text is different from narrative text or other kinds of texts.
Write a plausible proposal. The budget should match with the work described. The personnel should be plausible for the work described. The facilities should be plausible. Keep it simple.