тщательный

I

см. тж. более внимательное рассмотрение; всеобъемлющий

• The compound needs elaborate (or thorough) purification.

• Much more ambitious calculations are needed to follow these final stages in detail.

• On painstaking examination, ...

• Solid mixtures require more sophisticated investigation.

• The machines are subject to rigorous testing before dispatch.

• Careful maintenance is essential.

• Very close furnace control is required.

• Diligent spraying must defend the seedlings.

• Meticulous scientific and medical work ...

• Thorough greasing of the bearings is important.

• The careful choice of the diameter is important.

II

• This assures perfect atomization of the oil and intimate mixing of the combustion air with ...