The rubber diaphragms used by train brakes could pass the air pressure in the air brake distribution valve, and straightly affected the brake property and running safety.是什么意思_The rubber diaphragms used by train brakes could pass the air pressure in the air brake distribution valve, and straightly affected the brake property and running safety.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句