The main way to prevent HIV infection is to reduce the risk of exposure to HIV, for instance by having sex without a condom or sharing needles and other injecting equipment.IV can also be caught from sharing sex toys with someone infected with HIV. See causes of HIV for more on transmission of HIV. The best way to prevent HIV and other sexually transmitted infections (STIs) is to use a condom for penetrative sex and a dental dam for oral sex.
In the Reilly technique, an initial drawing is made of 6 lines, they starts with the head then the torso is placed, then the limbs. A good explanation of this technique can be read on this blog post by Doug Higgins.
Technical drawing, drafting or draughting, is the act and discipline of composing drawings that visually communicate how something functions or is to be constructed. Technical drawing is essential for communicating ideas in industry and engineering. To make the drawings easier to understand, people use familiar symbols, perspectives, units of measurement, notation systems, visual styles, and page layout.