20. Further requests the Secretary-General to ensure that the Mission effectively utilizes the available rail and inland waterway transport modes where they are more reliable and cost-effective than air transportation and safe to use;
20. 还请秘书长确保，凡在现有铁路运输和内陆水运方式比空运更可靠、成本效益更好、而且可以安全使用的情况下，特派团都切实加以利用；