Going back to my favorite analogy in regards to open source software and proprietary software — proprietary software is like buying a car with the hood welded shut.
回顾我最爱的那些关于软件源代码和私有软件的类推法——私有软件如同买辆非敞篷车。
2
Square tube in cold neutron channel is welded together by aluminum alloy plate, it is used to guide neutron from cold neutron source.
冷中子孔道方管采用铝合金材料焊接而成，其作用是从冷中子源引出中子。
3
The temperature field and residual stress field were obtained by using 3-D double-ellipsoidal heat source model to simulate welded process.