первичное

In a sentence

• Первичное обследование пациента проводит терапевт.

  The initial examination of the patient is conducted by a general practitioner.

  Here, the word 'первичное' is an adjective that describes the noun 'обследование,' indicating that it is the first step in a sequential process, specifically the first medical examination.

• Для построения крепкого фундамента важно уделять внимание первичному этапу работ.

  To build a solid foundation, it is important to pay attention to the initial stage of work.

  In this case, 'первичное' modifies 'этапу,' referring to the first stage in a sequence of tasks or construction processes.

• В химии первичное соединение означает молекулу, участвующую в первой стадии реакции.

  In chemistry, a primary compound refers to a molecule involved in the initial stage of a reaction.

  Here, 'первичное' is used in a technical context to describe a compound, indicating its role as fundamental or introductory in the reaction sequence.