lower mast
常见例句
- HK to lower flag at half-mast to mourn victims.
香港下半旗向在菲律宾受害者致哀。 - Jackup mast for marine drilling operation realizes hoisting of the mast by means of the pulley mechanism on the lower part of the mast.
自升式井架是目前海洋钻井工程中应用较多的新型井架，它利用井架底段的滑轮机构进行井架的起升操作。 - Grandfather threaded the handkerchief to the mast using grass that fit nicely through the lace, first along the upper beam, then the lower one.
爷爷将手帕绑在“桅杆”上，用青草正好能穿过蕾丝花边，先是上面的横梁，然后是下面的。 返回 lower mast