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odd number side hollow drill steel 奇数边中空钢
hollow drill steel bar 中空钻杆钢筋
hollow drill steel 中空钢,中空钻探钢
In well-drilling project, corrosion of drill steel and pipeline is ubiquitous phenomena. 油田钻具和管道系统腐蚀是油田工程中普遍存在的问题。
Main applications:For piercing seamless steel tubes such as stainless steel, drill steel and high temperature alloy steel. 用途：用于穿制不锈钢、合金钢和高温合金等无缝管。如有特殊要求，可协商解决。
Because their cross sections are almost equilateral hexagons,the equilateral hexagons rock drill steels are regarded as my research objects. 钎杆用中空钢,简称“钎钢”,截面以正六角形和圆形为主,因此本文以正六角形钎杆用中空钢为研究对象。
Instead, they applied drilling steel, pickaxe and bearing cushion contained slight technological element. 他们重新分配人手,并将吊车暂时停下来,动之以钢钎、镐头、还有略有科技含量的承重气垫。
Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
hollow rock drill steel 中空钎钢
The bell, when struck, gave forth a hollow sound. 敲这钟时发出一种闷哑的声音。
At six we were fallen in for drill. 六点钟我们站好队准备操练。
His protests on human rights sound hollow. 他就人权问题提出的抗议听来很空洞。
In a minute Jimmy's drill got into the steel door. 没过多大一会儿，基米就钻透了钢门。
A round hollow in a hillside; a cirque. 盆地山区中的圆的洼地
Here we are in the yard of the steel mill. 这儿就是不锈钢厂的料场。
She held the small bird in the hollow of her hand. 她把那小鸟握在掌心里。
The sound of that drill jangles horribly on the nerves. 那台钻机的声音响极了，十分刺耳。
Let's have a picnic down in the hollow. 咱们到下面的山谷去野餐吧。
On the outskirts they passed a steel mill. 他们在郊区从一家钢铁厂前面经过。
You'd better set a goal before you start the drill. 练习开始前，你最好设定一个目标。