A ring crane is a large construction crane that has a luffing jib.
环式起重机是一种具有变幅臂的大型建筑起重机。
Luffing jib
原声例句
奇趣工程百科
奇趣工程百科
The max distance of the main boom and luffing jib is up to 384 ft.
主臂和变幅副臂的最大距离可达384英尺。
奇趣工程百科
This Demag crane comes equipped with four hoist winches, a boom derrick with two winches, a boom hoist a luffing jib with two winches and a slewing mechanism.
该德马格起重机配备了四个卷扬绞车、一个带两个绞车的动臂井架、一个动臂葫芦、一个带两个绞车的动臂和一个回转机构。
英语百科
Level luffing crane
A level-luffing crane is a crane mechanism where the hook remains at the same level whilst luffing; moving the jib up and down, so as to move the hook inwards and outwards relative to the base.
Usually the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing.
- cryptil satellite的意思
- cryptiogene的意思
- cryption的意思
- cryptish的意思
- cryptite suture的意思
- cryptitis的意思
- cryptitis urethralis的意思
- cryptlike的意思
- cryptmeter的意思
- crypto的意思
- cryptoactive的意思
- cryptoanalysis的意思
- crypto analyst的意思
- Cryptoanalyst的意思
- cryptoanalysts的意思
- cryptoanalytic的意思
- cryptoanalytical的意思
- cryptoanalytic solution的意思
- cryptoanarchy的意思
- crypto ancillary unit的意思
- CryptoAPI的意思
- cryptoarithmetic problem的意思
- cryptobatholithic的意思
- cryptobatholithic stage的意思
- Cryptobia的意思