桅杆

The object of optimization includes different aspects of structural engineering This paper attempts to review the state-of-art of the applications of optimization technique to the design of civil engineering structures, such as beams, purlins, frames, bridges, guyed masts and building systems with emphasis on mathematical models used and the economical benefits obtained.

优化的对象涉及结构工程的各个方面。本文试图综述各国在土建结构设计中运用优化技术的概况，类如梁、懔条、框排架、桥梁、桅杆以及建筑体系等，着重于所采用的数学模型与经济效果。

Mast and yards are from pear, the carving work is pear and plum tree covered with gold leaf.

桅杆和码是由梨，雕刻工作的梨和李子树覆盖着金箔。

A number of retractable masts are carried inside the sail including periscopes, radar antennas, radio and satellite communications, and navigation masts.

许多的可缩回桅杆装在帆罩内包括潜望镜、雷达天线、无线电、卫星通信和导航。

In here,everything is for the children's doing and thinking, These are the plasticine statures, small house patchworks, drawing, unearthing the culture relics, climbing the mast,draving cars, lerning fireman, how to go in the zebra crossing, fishing, making foods, playing cheeses, game with bolin,and catching butterflys.

这里面都是让儿童自己动脑动手，有橡皮泥塑作、小房子拼接、画画、动手挖地下文物、上桅杆、开汽车、当消防队员、学习过斑马

After the white-gray sails taut to their spars and ropes

灰绳拉紧白帆袖桅杆向天愁

It is labour then which puts the greatest part of value upon land, without which it would scarcely be worth any thing: it is to that we owe the greatest part of all its useful products; for all that the straw, bran, bread, of that acre of wheat, is more worth than the product of an acre of as good land, which lies waste, is all the effect of labour: for it is not barely the plough-man's pains, the reaper's and thresher's toil, and the baker's sweat, is to be counted into the bread we eat; the labour of those who broke the oxen, who digged and wrought the iron and stones, who felled and framed the timber employed about the plough, mill, oven, or any other utensils, which are a vast number, requisite to this corn, from its being feed to be sown to its being made bread, must all be charged on the account of labour, and received as an effect of that: nature and the earth furnished only the almost worthless materials, as in themselves.

如果我们追踪一下我们食用的每块面包的劳动所提供的东西，那么将会发现这是一个不太可理解的物品清单；铁，树，皮革，树皮，木头，石头，砖，煤炭，石灰，布料，染料，沥青，焦油，桅杆，绳索，以及所有造船的材料——船运来了其他工人制造的这件工作所需要的物品——完全列举几乎不可能，至少是太长。

The English main-mast rises to a height of two hundred and seventeen feet above the water-line.

英国的大桅杆，从水面算起，就有二百十七英尺高。

The taller mast, whether forward or aft, of a two-masted sailing vessel.

主桅双桅帆船中较高的桅杆，无论是位于船头的还是船尾的

Two-masted vessel square-rigged on both masts.

在两个桅杆上有两个正方形的有桅的船。

The beam element and truss element are discussed to build the mast model respectively.

阐述了用梁单元和杆单元来描述的桅杆杆身有限元模型。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷