• The number of each of these element notations is prefixed with the letter n.

I

см. тж. до; непосредственно ~

• A mirror is mounted in front of the lamp.

• The box is located ahead of the drive head.

• The three evaporators are located forward of the engine room.

• A trap was placed upstream of (or from) the absorber.

II

• Following a deglaciation, but preceding the next glaciation, is a period of time in which ...

• The electrophile is produced in the reaction solution prior to its attack on ...

• Preliminary to annihilation the positron-negation pairs form bound systems called positronium atoms.

• Prior to (or Before) testing, all specimens were dried.

• Preparatory to die casting a heated core is loaded vertically to ...