“单孔”用英语怎么说？

结论单孔或双孔钻颅血肿引流是治疗慢性硬膜下血肿的有效方法.Conclusion Single - bore or double - bore drainage is effective in treating chronic subdural hematoma.短线 投资能力的训练也需要运用到单孔射击理论.Short - term ability to invest in training also to apply the theor...