luffing crane一带一路是什么意思思

Definition from Wiktionary, the free dictionary
. Collins English Dictionary states that this word is ultimately derived from
. Ellert Ekwall's Shakspere's Vocabulary: its etymological elements (1903) related this verb and
instead to the East Frisian verb lofen, lufen, which would make it cognate to the French term .
that is closest to the direction of the .
By easing the , the luff of the sail was made to sag to .
() The act of sailing a ship close to the wind.
() The roundest part of a ship's bow.
() The forward or weather leech of a sail, especially of the jib, spanker, and other fore-and-aft sails.
(third-person singular simple present , present participle , simple past and past participle )
(, of a sail, ) To
due to being trimmed improperly.
(, of a boat, ) To alter
so that the sails luff. (Alternatively luff up)
(, ) to let out [a sail] so that it luffs.
(mechanical) To alter the vertical angle of the
so as to bring it level with the load.
Howard I. Shapiro, Jay P. Shapiro, Lawrence K. Shapiro,
Cranes and Derricks, ,
The tower is mounted on a slewing platform, which also carries the power plant and the counterweights, while the jib is supported and luffed by fixed pendant ropes.
“” in < Unabridged, v1.0.1, Lexico Publishing Group, 2006.Luffing Tower Crane STL720-32t
Description
Parameters
Model: STL720-32t
Load Moment: 729.6t. M
Max. Load: 32t
Tip Load: 9t
Jib Length: 60m
Free Height: 30.4m
Key Specifications
Hoisting: 110LFV160B
Slewing: 7.5RFCV
Luffing: 110DFV80B
Travelling: RT
Working Radius: Hoisting Capacity
50m 10.98t
40m 13.90t
30m 16.00t
FOB Price:
Minimum Order:
Payment Terms:
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水平起重机,俯仰式起重机,鹅头伸臂起重机
以下结果由
1. 俯仰式起动机2. 动臂起重机3. 旋臂起重机
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