Note 2 : The age of a diesel PLB as at the date of de-registration is calculated on the basis of the dates of first registration and de-registration.是什么意思_Note 2 : The age of a diesel PLB as at the date of de-registration is calculated on the basis of the dates of first registration and de-registration.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句