A 4-cell PEMFC stack made with this new bipolar plate is built with weight 370 g and volume 385 cm3 without a fan.是什么意思_A 4-cell PEMFC stack made with this new bipolar plate is built with weight 370 g and volume 385 cm3 without a fan.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句