HJ-steel BE23, as a mortar, must be applied with a trowel, spreader, squeegee, or other specific equipment for mortar application.是什么意思_HJ-steel BE23, as a mortar, must be applied with a trowel, spreader, squeegee, or other specific equipment for mortar application.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句