使用RequireJS时，下面这个三个参数怎么理解？_，Shi，Tuan三个参数代表什么意思？

Question

       define(['require','echarts', '../dataComponent', '../../util/helper','./shi', './tuan','../../mapGeo/xinjiang'], 
    function (require, Echarts, DataComponent, _, Shi, Tuan) {

    var geoCoordMap = _.extend(true,{
        '北京': [116.4551,40.2539],
        '兵团': [87.9236,43.5883]
    }, Shi, Tuan);

    var config = {
        lineMinWidth:1,
        lineMaxWidth:4,
        lineWidthRate:100,
        specialLineWidth:6,
        lineSpeed:6,
        topLevelName:'兵团',
        yellowArrow: 'data:image/png;base64,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',
        greenArrow: 'data:image/png;base64,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',
        colors:['#fc1b43', '#ffba00', '#1cffb7','#26abff']
    };

_，Shi，Tuan三个参数代表什么意思

    var geoCoordMap = _.extend(true,{
        '北京': [116.4551,40.2539],
        '兵团': [87.9236,43.5883]
    }, Shi, Tuan);

Answer 1

_应该指的是loadsh。
后面的shi和tuan应该是用来填充数据的基础数据，类似默认config，大概是师，团的意思?
【突然觉得这个问题有点危险。。】