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The modal parameters and stiffness of a guyed mast are sensitive to the initial pre-tension, excitation and environment, this leads to that many effective methods and indexes are difficult to use.

桅杆的模态参数和刚度对纤绳平衡张力、激励和环境条件比较敏感，导致目前比较有效的结构损伤识别方法和指标难以直接应用。

In the process of the calculation of the guyed mast' wind-induced fatigue, the structural finite model is just theoretical, and this theoretical model is different from the actual structure.

因此，以桅杆上有限测点的实测风振响应来反演结构的动态荷载，是间接测量的一种途径。

The damage probability of Guyed Mast is especially high under normal designing and constructing because its complicated principle is not fully known.

详细桅杆结构是由柔软的纤绳和细长的杆身组成，其大变形及强非线性使得其动力特性十分复杂。

Since the determination of dynamic load is difficult especially for structures with a great many degrees of freedom and nonlinearity such as guyed mast and power transmission tower,few researches have focused on this problem.

动态荷载的确定是一个较难的问题，自由度多且具有非线性的桅杆、输电线塔结构的动态荷载识别更少有人涉足。

There are some variances between them. In the guyed mast' wind resistance design, these differences are inessential if they are within the error permission.

本文采用基于模态分析的方法，通过建立桅杆结构的线性化有限元动力分析模型，运用结构在模拟风荷载下的有限测点风振响应数据识别了作用在结构上的风荷载时程。

The erection of the Three-Gorge luffing cable cranes is using the way of lifting mast sections.

介绍了三峡摆塔式缆索起重机的塔架顶升安装法，即先安装塔架的塔头及其上部分的零部件，然后逐节顶升和拼装标准塔节。

Ken scooted up on the bed and nodded, eyes at half mast.

肯恩轻快地奔跑在床上上面而且点头，在一半的天线柱的眼睛。

Antigen interacts with the surface of sensitized mast cells.

抗原与致敏的肥大细胞表面互相作用。

Hole in a platform on a mast through which a sailor can climb without going out on the shrouds .

在桅杆平台上的一个口，通过此口，海员可以不必用桅杆的左右支索就能自动上升。

Or I start trivializing Princess Diana's funeral by saying what a circus, why lower the Union Jack at half-mast, people die by the thousands every day.

或者我去轻视戴安娜王妃的葬礼，比如可以说英国干嘛要降半旗啊，每天有上千人死掉呢！

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。