三滚磁选机 CXJ-W-III
三滚柱式螺纹量规 triroll gauge
三滚筒压路机 three wheel roller ; three-wheel roller
液压三滚筒轧墨机 hydraulic three-roll ink mill
全国三年滚动财政规划 a national fiscal plan on a rolling three-year basis
三滚筒起网机 tricylinder hauling machine
三滚筒耙矿绞车 triple-drum scraper hoist
三滚筒提升机 three-drum hoist
三滚轮波发生器 triple-roller wave generator
另外还要求在单个工作单元内完成这三个服务程序，并且要求所有操作都能成功执行，否则要求回滚。
You're also informed that the three services are to be completed in a single unit of work, and need to all succeed or, if not, to roll back.
前两个服务调用成功，但是当第三个服务返回故障时，这个事务就被回滚。
The first two service invocations were successful, but when the third returned a fault, the transaction was rolled back.
十分钟以后，为了穿过森林，我们将车开上了一条起伏不平的泥泞小道，却发现一只刚从泥坑里打过滚的犀牛跑到了路中间，身后还跟着一只同样满身泥的幼犀，体型差不多有母犀的三分之二左右。
Ten minutes later we were driving through forest along a raised dirt track when a rhino fresh from a wallow climbed onto the road, followed by an equally muddy juvenile two-thirds her size.
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