opaque substance
The Spanish phrase 'sustancia opaca' translates to 'opaque substance' in English. 'Sustancia' means 'substance' and 'opaca' means 'opaque'. In scientific and general usage, an opaque substance is one that is neither transparent (allowing all light to pass through) nor translucent (allowing some light to pass through). This common term could refer to a wide variety of materials in different contexts, such as walls, metals, some textiles, and more.
Smoke is an opaque substance that impairs vision.
This example demonstrates the use of 'sustancia opaca' to describe any substance that obstructs vision, in this case, smoke. The verb 'dificulta' in this sentence illustrates the effect of the opaque substance.
Black paint is an opaque substance that absorbs light.
In this phrase, 'sustancia opaca' refers to black paint, which is known for its light-absorbing property. This is a common way to illustrate how opaque substances often absorb light, instead of allowing it to pass through.
It's hard to see through the glass if an opaque substance is applied.
Here, the use of 'sustancia opaca' emphasizes the property of opacity that obstructs view when applied to transparent objects, like glass. 'Aplica' is an action verb that helps to convey this effect in the sentence.