-
这种流量计包括一个具有断面扩张的导管。
This meter consists of a conduct having an enlarged section .
youdao
-
这种流量计包括一个具有断面扩张的导管。
This meter consists of a conduct having an enlarged section.
youdao
-
这种流量计包括一个具有断面扩张的导管。
This meter consists of a conduct having an enlarged section.
youdao