While many connector systems can be purchased off-the-shelf or through traditional sales channels, many standard products trade performance for wider market acceptance. 很多連接器系統可從貨架購買(mǎi)，也可以通過(guò)傳統的銷(xiāo)售渠道購買(mǎi)，而很多標準產(chǎn)品貿易具有更為廣泛的市場(chǎng)接受度。
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