The Formation Mechanism of η Carinae s Homunculus Nebula;
船底座eta星矮人星云的形成机制
Design model for new rig derrick and substructure;
新型钻机井架及底座设计模型
Recnstruction of the derrick and substructure for Daqing 130 rig;
大庆130型钻机井架和底座的改造
For the mast and substructure,as the drilling rig's main components,the structural design project,mostly,of its influence and decide general arrangement of the drill rig.
井架、底座作为石油钻机的主要部件,其结构方案的优劣很大程度上影响和决定着钻机方案的优劣,在超深井钻机设计中,井架、底座技术更是钻机的关键技术之一。
A constellation in the polar region of the Southern Hemisphere near Apus and Carina.
苍蝇座位于南极区靠近天燕座和船底座的星座
A constellation in the polar region of the celestial Southern Hemisphere near Carina and Dorado.
飞鱼星座南天球极部地区船底座和剑鱼座附近的一个星座
The top of the Keyhole Nebula, the most prominent feature embedded inside Carina, is on the left.
深植于船底座中最显著的结构“锁眼”星云的顶部处在左边。
Right to the crux is the Eta Carina Nebula, one of the most beautiful nebula in the night sky.
南十字右方为船底座的海山二星云，也是十分壮观的天体。
In looking at the Carina Nebula we are seeing the genesis of star making as it commonly occurs along the dense spiral arms of a galaxy.
通过对船底座星云的观察，我们看到了通常沿银河密集的旋臂所诞生恒星的起源。
Left]- A towering" mountain" of cold hydrogen gas laced with dust is the site of new star formation in the Carina Nebula.
左图——一个饰有尘埃花边高耸的冷氢气“山脉”正是船底座星云中新恒星诞生地。
This Hubble Space Telescope view of the central region of the Carina Nebula reveals a violent maelstrom of star birth.
此次“哈勃”空间望远镜对船底座星云中心区域的观察展现了一场狂暴的恒星诞生风潮。
A constellation in the Southern Hemisphere near Volans and Vela that contains the star Canopus.
船底星座南半球一星座，在飞鱼座和船帆座附近，包括老人星
dock that can be submerged under a vessel and then raised.
一个既能在船底下又能上升到船上边的一座坞。
A square base, as for a vase.
底座花瓶等的方形底座
a small boat of shallow draft with cross thwarts for seats and rowlocks for oars with which it is propelled.
有交叉横木座位和推动前进的橡胶桨架的浅底的小船。
Gemini spacecraft
“双子星座”号飞船
The person who propels a gondola.
平底船船夫摇平底船的人
strike the ground, as with a ship's bottom.
打击底部，比如船的底部。
Highly respectable gondoliers.
可敬的平底船船夫[34]!
The ship sustained damage to her bottom.
这艘船的船底已损坏。
cause(a ship,etc)to go to the bottom of the sea
使（船等）沉到海底
cried out we had sprung a Leak;
喊道：船底漏水了；