The gtt feature is used with IS - 41 Revisions B and beyond.

gtt特性同IS-41RevisionB及以上共同使用.

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The gtt form is used to derive a STP point code for a given translation type.

gtt表用于获得给定转换类型的STP点编码.

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GTT 4 - A CO 2 Filler is a special equipment for the fire - fighting system that developed.

GTT4-A二氧化碳充灌机是用于消防系统二氧化碳充灌的专用设备.

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