On the bench beside me a young boy kept glancing up from his copy of Thomas the Tank Engine at the stout, blue-painted train we were waiting to board.
我身边的长椅上坐着一个男孩在看他那本《托马斯和朋友》,等着登上那列牢固的蓝色火车。
2
Bench grinder consisted of shield, chip block board and bracket, it has the characteristics of high speed, simple structured, wide range of applications, general manual etc.
The physical model of cantilever board in bench blasting is firstly presented and based on the hypothesis, a formula for calculating the charge weight in the MS delay bench blasting is also derived.