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unprotected concrete pad 无防护的混凝土发射坪
These targets consist of three mock airstrips and two concrete pads. 这些目标分别由三条模拟机场跑道和两个水泥平台组成。
The concrete walls are reinforced with steel rods. 混凝土墙是用钢筋加固的。
We need a hoist to lift the concrete blocks. 我们需要一台起重机来吊起混凝土块。
The machine rests on a bed of concrete. 机器安装在混凝土基座上。
That new concrete building is an abomination. 那座新混凝土建筑是个讨厌的东西。
The road was paved with concrete. 路面由混凝土铺成。
Have you got any concrete proposals? 你有没有具体的建议呢?
The house is made of stone, not concrete. 那房子是石造的，不是混凝土造的。
Tom tumbled over and hit his head on the concrete. 汤姆摔倒，头撞到水泥地。
The statue rests on a bed of concrete. 这座雕像立在混凝土的基座上。
The front of the house was faced with concrete. 房屋正面涂著一层混凝土。
Talk Do you really want to unprotect this page? 您真的想要解除本页的保护吗？
In the concrete, the theory is far from perfect. 实际上,这一理论远远不够完善。
Do you really want to unprotect this page? 你确实要解除本页的保护？
These buildings are made of concrete and steel. 这些房屋是用钢筋混凝土建成的。
She contracted a dose by having unprotected sex. 她因不安全性行为而患性病。
Shoes and trees are concrete objects. 鞋和树是实物。
The word "apple" is a concrete noun. "苹果"是个具体名词。
The bare concrete floor was cold on my feet. 水泥地没铺地毯，我的脚感到很凉。