The latter arises from abstraction of the somewhat lesser activated C - H bond in the dioxolane.后者是由二氧杂环戊烷中活化较弱的C -H 键离解而产生的.Twisting arises in boards through the presence of spiral or interlocking grain.翘曲多发生在螺旋或交错纹理的板材...
Having identified the problem, the question arises of how to overcome it.发现问题后，如何克服它的问题又出现了。Any unexpected circumstance that arises may catalyze a sudden escalation of violence.任何突如其来的情况都可能造成暴力骤然升级。This type of inefficie...
当发生这个的时候, 我意愿要回光体并将其重铸.When this occurs, I intend to retrieve it and recast it.如, 压铸 、 重铸 、 砂铸 、 锻造及精加工.For example, die - casting, Recast, sand casting, forging and finishing.新一致实相中的那些重铸正在揭示很多事物.The recasting of those i...
At 240 mph the needle went off the clock.车速达到每小时240英里时，里程表上的指针显示超出了最高时速。A speed limit of 30 mph was introduced in built-up areas.在建筑密集区域，车速限制为每小时30英里。Inside these zones, traffic speeds are restricted to 20 mph.在这些区域内，交通限...
Air raid wardens in tin hats self - importantly stalked the streets.空袭民防队员戴着钢盔神气活现地走在街上昂首阔步.The game wardens tranquillized the rhinoceros with a drugged dart.猎物保护区管理员用麻醉射器让犀牛静了下来.He came with two wardens and they thoroug...