增加：地形标定管理

liusuyi

2024-06-22 59dd637267a99eadd2c5cf0b8d59e8dc4fbb6b26

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var defineWellKnownSymbol = require('../internals/well-known-symbol-define');
 
// `Symbol.asyncIterator` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.asynciterator
defineWellKnownSymbol('asyncIterator');