延迟-延迟抖动受限
delay-delayjitter-constrained
档案描述叙述
file description statement
格式描述叙述
format description statement
环境描述叙述
environment description statement
栏描述叙述
field description statement
组件字段描述叙述
element field description statement
GNSS信号方向湿延迟
GNSS slant path wet delay