“环的”造句
主要神经
环的组织原已有详细描述.
The histology of the main nerve rings has been described in detail.
它仍然是在反应中生成过渡状态的杂
环的实例.
It represents an example of a heterocycle being formed as transient species.
控制可以是开
环的也可以是闭
环的.
This control may be closed loop or open loop.