Sentence examples for surface must be from inspiring English sources

The surface must be flat, relatively smooth and firmly bonded to the counter.

If a stone has been used before, its surface must be reground.

When I am starting off seeds in pots, the instructions often say the surface must be covered to promote propagation.

To pull this off, the clay surface must be flawless and then a plastic film or metal foil is applied.

Crop residues on the surface must be managed in order to provide conditions suitable for seeding and cultivating a crop.

There are many other possible solutions that fail because the structure must be made of wood, and so every surface must be nonzero.

The mold material must also resist fusion with the molten metal, and the sand at the mold surface must be closely packed to give a smooth casting surface.

Long before human beings could observe the regolith firsthand, Earth-based astronomers concluded from several kinds of measurements that the Moon's surface must be very peculiar.

Because rays are really only directions and have no physical existence, the passage of light waves through a surface must be considered if refraction is to be understood.

In all types of letterpress presses the printing surface must be coated with a uniform layer of ink before receiving the paper.

Its colour and spectrum correspond roughly to spectral type A, with a surface temperature of about 25,000 K. Hence, the energy emission per unit area from the surface must be much greater than that of the Sun.