Definition: Translate the given Spanish text to English

Positive Example 1 -
Input: A method for converting a series of m-bit information words to a modulated signal is described.
Output: Se describe un método para convertir una serie de palabras de informacion de bits m a una señal modulada.

Positive Example 2 -
Input: A last plastic cover is applied as a final protection.
Output: La presente invencion comprende un nuevo mezclador termocinetico.

Negative Example 1 -
Input: Luminescent optical sensor.
Output: SENSOR OPTICO LUMINISCENTE.

Negative Example 2 -
Input: The urinal is similar to a common toilet.
Output: El común es similar a un inodoro orinal.

Now complete the following example -
Input: The predetermined substance group contains the plastic, and each infrared absorption spectrum of the infrared absorption spectrum group is obtained by allowing the infrared ray of the predetermined wave number to be incident on each substance contained in the predetermined substance group, and measuring the intensity of the infrared ray totally reflected in the substance.
Output: El grupo de substancias predeterminado contiene el plastico, y cada espectro de absorcion infrarrojo del grupo de espectro de absorcion infrarrojo se obtiene al permitir que el rayo infrarrojo del numero de onda predeterminado sea incidente en cada substancia contenida en el grupo de substancias predeterminado, y medir la intensidad del rayo infrarrojo talmente reflejado en la substancia.