ebay api中的某些产品不会使用findItemsAdvanced返回pictureURLLarge进行产品列表

Question

我是ebay API的新手。我试图从ebay拨打服务，如下所示

http://svcs.ebay.com/services/search/FindingService/v1?
OPERATION-NAME=findItemsAdvanced&
SERVICE-VERSION=1.12.0&
SECURITY-APPNAME=XXXXXXXX&
GLOBAL-ID=EBAY-IN&outputSelector=PictureURLLarge&
RESPONSE-DATA-FORMAT=XML&REST-PAYLOAD

我已经添加了outputSelector=PictureURLLarge。但是返回的某些产品没有收到pictureURLLarge

以下是我得到的SimpleXMLElement之一的输出，

SimpleXMLElement Object
    (
     ............... 
     ...............
    [galleryURL] => http://thumbs3.ebaystatic.com/m/mul3eDNEoMQ0GzjE_L86YtA/80.jpg
    [viewItemURL] => http://www.ebay.in/itm/Nike-Golf-Sport-Shoe-Tote-/290867798430?pt=LH_DefaultDomain_203
    [paymentMethod] => PaisaPayEscrow
    [autoPay] => false
    [location] => India
    [country] => IN
    [shippingInfo] => SimpleXMLElement Object
        (
            [shippingServiceCost] => 0.0
            [shippingType] => Free
            [shipToLocations] => IN
        )

    [sellingStatus] => SimpleXMLElement Object
        (
            [currentPrice] => 3540.0
            [convertedCurrentPrice] => 3540.0
            [sellingState] => Active
            [timeLeft] => P26DT3H27M13S
        )

    [listingInfo] => SimpleXMLElement Object
        (
            [bestOfferEnabled] => false
            [buyItNowAvailable] => false
            [startTime] => 2013-02-21T18:09:53.000Z
            [endTime] => 2013-09-19T18:14:53.000Z
            [listingType] => StoreInventory
            [gift] => false
        )

    [condition] => SimpleXMLElement Object
        (
            [conditionId] => 1000
            [conditionDisplayName] => New
        )

    [isMultiVariationListing] => false
    [topRatedListing] => false
)

如果我们检查产品所在的链接，即 viewItemURL here，我们会看到一张大图片，但是这里我们在 PictureURLLarge中没有相同

还有其他办法吗？

任何帮助都会很明显。

注意：我不想使用会导致大量api调用的GetSingleItem。

提前致谢。