... jib adjusting gear ==> 起重机悬臂升降机构 jib boom ==> 后斜帆桁 jib crane and grab ==> 悬臂吊车及抓取器 ...
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flying jib boom 艏斜杆
Jib boom stroke 吊臂伸缩量
jib boom guy 前帆横杆支索
jib boom track 前帆横杆拉曳索
jib-boom crane 装配吊车
jib boom crane 装置吊车
jib-boom 斜桅
Jib Boom Attachment 臂景气实习
N a spar forming an extension of the bowsprit 船首斜帆桅 [nautical]
There must be good support for the mast, jib boom attachment, and other fittings.
必须有良好的支持桅杆，臂景气实习，及其他配件。
Any of several parts of standing rigging strengthening the bowsprit and jib boom against the force of the head stays.
艏斜桁撑杆，艏斜桁撑杆支索一种直立索具，用以加固船首斜桁和船斜帆桁，以抵御船头支索力量。
Also known as the amplitude limit or range indicator, jib cranes general boom are linked to a range of indicators.
也称变幅限位或幅度指示器，一般的动臂起重机的起重臂上都挂有一个幅度指示器。
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