تانیا جان برای یافتن برگردان این جور واژه های تخصصی باید آونها را توی متن دید.پیشنهاد می کنم ببینی توی کتابهای ترجمه شده رشته ی تخصصیت چی ترجمه شده اند. مثلا یک مترجم خیلی خوب! واژه ی را ترجمه کرده بود بینایی اتومبیل! machine vision که هست بینایی ماشین

subject area a branch of knowledge subject matter Definition: Subject matter is what something is about. In artwork, the subject matter would be what the artist has chosen to paint, draw or sculpt. In patent law, the subject matter would be the technical content of a patent or patent application found in the description, claims and drawings. In other words, subject matter is what the inventor has choosen to invent, and in a patent application the inventor must reveal the subject matter (invention) in a way dictated by law.