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 ...