... than ±10%, power capacity not less than 0.5KVA, have a good grounding, grounding resistance of less than 4Power lines may ... chip.TB-type goniometerDesigned by a round rod lens, sample stage with a load-bearing track, and add a V-bearing guide, can weigh ... length of the crystal rod, the sample plus there is a vacuum suction device platform, the model goniometer in the measurement ...