Two kinds of boric ester brake fluid are prepared, and the performance test results show that properties of the brake fluid reach the American DOT 4 standard.是什么意思_Two kinds of boric ester brake fluid are prepared, and the performance test results show that properties of the brake fluid reach the American DOT 4 standard.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句