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- bottom moulding box 下砂箱
- On this basis, it is proposed that the design of the water - cooling bottom mould be improved to strengthen the cooling effect of the thick top piston and achi... 在此基础上,提出了通过改进水冷底模的设计等方法以加强活塞顶部的冷却效果,促使活塞实现顺序凝固。实践证明,所提出的方法是可行的,为厚大顶部活塞模具的设计提供了一些思路。
- A box has a top, a bottom and four sides. 盒子有顶面、 底面和四个侧面。
- They sent the enemy ship to the bottom of the sea. 他们把敌舰击沉。
- The child was sitting on the bottom stair. 那孩子正坐在楼梯最下面的一级上。
- I intend to get to the bottom of it. 这件事我打算寻根究底。
- The host then passed around a box of cigars. 主人这时拿了一盒雪茄烟请大家抽。
- He was always bottom of the class in maths. 他的数学成绩在班上总是垫底。
- Bread tends to mould in damp weather. 气候潮湿时，面包容易长霉。
- How could he get his heavy box up all those stairs? 这么重的箱子他是怎么抬上楼的？
- The dregs have settled at the bottom of the bottle. 渣滓都沉到瓶底了。
- He brought the box of groceries in from the car. 他把一盒食品从汽车上拿进来。
- The heavy box landed crash on his head. 沉重的箱子哗啦一声掉到他的头上。
- I fell right to the bottom of the stairs. 我从楼梯上一直摔到楼梯下面。
- The metal in the mould hardened into shape. 模子里的金属硬化成形。
- The police found a body at the bottom of the lake. 警方在湖底发现了一具尸体。
- His bottom waggle in a funny way when he walk. 他走路时臀部扭来扭去，很可笑。
- It's quite an effort to lift this heavy box. 抬起这只沉重的箱子要花费相当大的力气。
- He opened his safe and drew out a petty-cash box. 他打开保险柜取走一个小钱匣。
- The bottom of the boat was rusty. 船底生锈了。
