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- 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 numerical simulation of 3-D complicated turbulent flow in tailwater is studied.The effects of solid bottom boundary and free surface are considered in the simulation. 摘要对具有工程意义的挑射水流冲击射流导致的尾水河道三维紊流流场进行了数值模拟，计算中考虑了固体边界条件和自由水面条件对水流结构的影响。
- 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。
- We wanted to bottom our plan on a solid basis. 我们想把我们的计划建立在牢固的基础上。
- I intend to get to the bottom of it. 这件事我打算寻根究底。
- He was always bottom of the class in maths. 他的数学成绩在班上总是垫底。
- The dregs have settled at the bottom of the bottle. 渣滓都沉到瓶底了。
- I fell right to the bottom of the stairs. 我从楼梯上一直摔到楼梯下面。
- The police found a body at the bottom of the lake. 警方在湖底发现了一具尸体。
- Cheese is a solid; milk is a liquid. 乾酪是固体，奶是液体。
- His bottom waggle in a funny way when he walk. 他走路时臀部扭来扭去，很可笑。
- Solid fuel motors are coming into use. 固体燃料马达即将开始使用。
- The bottom of the boat was rusty. 船底生锈了。
- The country was solid for peace. 全国上下都希望和平。
- Water becomes solid when it freezes. 水结冰时便变成固体。
- There is a pair of scissors in the bottom drawer. 最底下的抽屉里有把剪刀。
- The miners were solid on this issue. 矿工们在这件事上是一条心的。
- Prices have reached rock bottom. 价格已经到了最低点。
- Matter can exist as a solid, liquid, or gas. 物体存在的形态有固体，液体，气体。
