5.3.1 it should design a machine to use more convenient.5.3.2 should be greater frequency to measure the frequency of the device used to measure also does not.
5.3.1 The unit should be designed to be more comfortable in 5.3.2 should be measured more frequently used to measure the frequency of the device is also used to measure it.
5.3.1 should design a machine to use more convenient 5.3.2 should measure frequency even more to make use of frequency measurement of the device also used to measure not .