The Radiation Detection Section in NRL's Space Science Division is developing novel radiation detectors based on hole- or trench-arrays in semiconductors.
海军研究实验室空间科学部辐射检测小组正在研发基于孔或沟槽阵列半导体的新型辐射探测器。
2
From nine to eleven he planned to dig a hole, or trench, and possibly find something good to eat buried in the dirt.
九点到十一点，他打算挖一个洞，或者一条小沟也行，没准儿还能从脏土里翻出什么好吃的呢。
3
The lower part of the lower traveling valve is connected to a guide shoe with diversion hole and diversion trench.