This article mainly includes: taking lowest weight as optimization goal, criterionrequest as restrict, optimization programme on jib arm structure of giant floatingcrane design is written based on genetic algorithm;according to jib arm structure ofgiant floating crane which is being designed and other former ones, size and structureform of jib arm are deeply discussed, furthermore, relatively reasonable jib armstructure scheme is proposed.

課題主要內(nèi)容：以結(jié)構(gòu)重量最輕為優(yōu)化目標(biāo)日韩在线观看网红自拍视频网站免费、以規(guī)范要求為約束條件欧美老妇激情BBW、使用遺傳算法編制了起重機(jī)臂架優(yōu)化設(shè)計(jì)計(jì)算程序A片197com网址，根據(jù)目前正在設(shè)計(jì)建造的和國(guó)內(nèi)已有的起重臂架結(jié)構(gòu)人人看人人插人人摸，在對(duì)拔桿式臂架的尺寸及結(jié)構(gòu)形式進(jìn)行了充分討論研究的基礎(chǔ)上干死你肏死你视频，提出相對(duì)合理的臂架結(jié)構(gòu)設(shè)計(jì)方案和設(shè)計(jì)思路91看片婬黄大片在线观看。

However, ship designoptimization in present time mainly focuses on a few aspects, such as ship sectiondesign considering ship hull longitudinal strength, and ship section design oncontainer ships with large hatch, while structure optimization designs of jib armstructure of giant floating crane are comparatively few.

但縱觀目前船舶結(jié)構(gòu)優(yōu)化設(shè)計(jì)，大多集中在幾個(gè)方面欧美丝袜精品一区二区，如考慮船體總縱強(qiáng)度特性的船體橫剖面優(yōu)化設(shè)計(jì)性生活一级A片、具有大開口截面特點(diǎn)的集裝箱類橫剖面優(yōu)化設(shè)計(jì)等。

The endangered species include the gorilla , the orangutan , the giant tortoise, the trumpeter swan , the whooping crane , the big cats, and the whales.

這些瀕危動(dòng)物有猩猩AV免费九九在线观看、巨龜欧美一级黄色片99、天鵝、鳴鶴日韩欧美在线视频观看、大型貓科動(dòng)物以及鯨魚性a视频在线观看。

Last year we hired a crane to lift some giant unclipped bays over a house because they were physically impossible to move by hand.

去年我們?cè)土艘惠v起重機(jī)，將一些巨大的未經(jīng)修剪的月桂樹吊過房頂，因?yàn)樗鼈儗?shí)在無法用手搬動(dòng)曰韩欧美不卡片。

China, especially Sichuan, is very successful in giant panda breeding. And it's a very precious opportunity for him to see pandas and black-necked crane. In fluent Chinese, Mr.

中國(guó)尤其是四川在大熊貓繁育工作上是非常成功的91丨九色丨喷水，能看到大熊貓、小熊貓及黑頸鶴等中國(guó)特有瀕危野生動(dòng)物也十分難得99热精品3。

Among all kinds of rare bird, the most precious one is the black-necked crane which reputed as 『giant panda in birds』.

在各種珍稀鳥類中美足AV无码一区二区，以素有『鳥中大熊貓』之稱的黑頸鶴最為珍貴。

The expansion program contains several new workshops to be built on 170,000 m2 of new purchased land, a giant quayside crane "Skyhook" and Huisman China's own quayside for installing products directly on vessels of clients.

擴(kuò)建項(xiàng)目包括若干新車間精品国产一区二区三区国产区，車間將構(gòu)建于新購(gòu)買的170久久黄色国产精品，000平方米用地之上；一臺(tái)巨大的岸邊起重機(jī)&高空吊&及豪氏威馬中國(guó)自有碼頭亚洲婷婷在线视频，以后公司的產(chǎn)品將在該碼頭直接安裝在客戶的船上国产精品久久无码HD毛片。

Wild animals that can be only found or mainly distributed in China include golden-haired monkey, spotted deer, red-crowned crane, giant panda, Chinese alligator, giant salamander and wild two-humped camel.

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