instruction:
Translate the given Spanish text to English
question:
The color of the stick is improved by the addition of the chelating agent.
answer:
El color de la barra se mejora mediante la adicion del agente acomplejante.


question:
Said length is not required outside the nose, however said dead space is necessary to locate the probe, thereby being essential.
answer:
Con un segmento de 80 cm en su porcion proximal que se desenrosca al final del procedimiento y que se desecha.


question:
Additional improvements or features of a key cutting machine are also described.
answer:

También se describen mejoras adicionales o características de una máquina duplicadora de llaves.