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 compositions preferably contain between about 50 percent and about 95 percent TCCA, between about 0.5 percent and about 7 percent glycoluril, between about 2percent and about 40 percent alum, and between about 2 percent and about 40 percent borax.
Output: Las composiciones contienen preferentemente entre aproximadamente 50 % y aproximadamente 95 % de TCCA, entre aproximadamente 0.5% y aproximadamente 7 % de glicolurilo, entre aproximadamente 2 % y aproximadamente 40 % de alumbre, y entre aproximadamente 40 % de borax.