阀座环–硬面阀座环焊入阀体内.Seat Ring – hard faced seat rings are welded to body.整体后座–硬面,使用寿命最长.Integral Backseat – hard faced for maximum backseat life.带有H的阀内件型号具有钴合金硬面阀座环表面.Trim numbers with H have cobalt alloy hard faced seat ring...
Most of these workers are American Indians living on reservations.这些工人中的大多数是住在居留地的美洲印第安人.Have you made the reservations for our holiday yet?你为我们度假做好预订安排了 吗 ?I have my reservations about his ability to do the job.我对于他做该项工...
The eighth commandment is "Thou shalt not steal".第八诫是“不可偷盗”。" Go now, child, and thou shalt tease me as thou wilt another time, " cried Hester Prynne.“ 现在快走吧, 孩子, 过一会儿再来缠我, ” 海丝特-白兰叫喊着.Neither shalt thou countenance a po...
The older strata gradually disintegrate.较老的岩层渐渐风化.Contained within the rock strata is evidence that the region was intensely dry 15,000 years ago.岩层中有证据表明，该地区在15,000年前曾经非常干旱。We can follow the history of life through the ...