The main control mechanism under the convention is the effect a system of prior notification and consent by the authorities of the states of import,export and transit before the commencement of shipments of hazardous or non-recyclable waste.是什么意思_The main control mechanism under the convention is the effect a system of prior notification and consent by the authorities of the states of import,export and transit before the commencement of shipments of hazardous or non-recyclable waste.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句