将以下文字内容翻译成英文：碳税和C&T机制的实施可以有效促进物流企业减排、以及物流企业对电动物流车的采纳。碳税政策的实施会增加企业的成本而C&T机制能够降低企业的成本。同时分析结果表明碳配额的行业调控因子不随企业规模的变化而变化该结果可以作为将物流行业纳入到C&T机制时设置调控因子的参考。

The implementation of carbon taxes and C&T mechanisms can effectively promote emissions reduction in logistics enterprises, as well as the adoption of electric logistics vehicles by such enterprises. The implementation of carbon tax policies will increase the cost for enterprises, while C&T mechanisms can reduce costs. Meanwhile, the analysis results show that the industry regulatory factor for carbon quotas does not vary with changes in enterprise scale, which can serve as a reference for setting regulatory factors when incorporating the logistics industry into the C&T mechanism.