Transfers and acquisitions under `emissions trading' in Article 17 pertain only to a part of the assigned amount which has remained unused on account of the emissions having been limited and reduced below the assigned amount of emissions.
第十七条的`排放量贸易'下的转让和获得只涉及部分分配数量，这部分分配数量是由于排放量被限制和减少到低于分配的排放额而未被用掉的。