-
主要产品有长冲程节能型抽油机和盘式刹车。
The main products are Long-stroke energy saving oil pumper and disk type brake.
youdao
-
我提出了四项这些，与两个长冲程49的，取得了6。
I made four of these which, with the two long stroke 49's, made six.
youdao
-
我提出了四项这些，与两个长冲程49的，取得了6。
I made four of these which, with the two long stroke 49's, made six.
youdao