皮皮学，免费搜题
登录
搜题
【多选题】
对于IV级钢筋，应采用预热闪光焊或闪光-预热闪光焊工艺进行焊接。当接头拉伸试验结果发生脆性断裂，或弯曲试验不能达到要求时，在焊机上进行焊后热处理，热处理工艺方法如下（）。A.
待接头冷却至常温，将电极钳口调至最大间距，重新夹紧
B.
应采用最低的变压器级数，进行脉冲式通电加热：每次脉冲循环包括通电时间和间歇时间3s
C.
焊后热处理温度就750～850℃（桔红色）范围内选择，随后在环境温度下自然冷却
D.
在预热闪光之前再增加闪光过程，使不平整的钢筋端面“闪”成较平整的
E.
在预热闪光之后需要有停歇再进行增加闪光
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】What don't they like about traveling? Look at the people below and read the statements. Then watch Part 4 of the podcast and match the statements A-F to each person. A B ...
【简答题】阅读短文,判断正误,正确的写“T”,错误的写“F”。 Last summer holiday , I went to Beijing with my family. We visited the Great Wall , the Palace Museum and parks there. There were lots of people in Beijing. They enjoyed eat...
【简答题】A. dispersed B. fixture C. decentralized D. frugality E. administrate F. elapse G. Reviving H. disjointed I. exquisite J. deduce A considerable period of time has to _____1______ before the ef...
【单选题】The cleaning wasn’t quite bad 5 we were anticipating, but of course, more we cleaned, less we enjoyed it!
A.
most
B.
w hether
C.
as
D.
though
E.
the
F.
than
【单选题】The cleaning wasn’t quite 4 bad we were anticipating, but of course, more we cleaned, less we enjoyed it!
A.
most
B.
w hether
C.
as
D.
t hough
E.
the
F.
than
【单选题】今年是长征胜利70周年。回顾长征之路，追寻红色记忆，当年中央红军巧妙地渡过金沙江，从此（）。
A.
确立了毛泽东在全党的领导地位
B.
使中国革命转危为安
C.
粉碎了敌人消灭红军的企图
D.
跳出了敌人的包围圈
【简答题】What don't they like about traveling? U2_1_1e.wmv Look at the people below and read the statements. Then watch Part 4 of the podcast and match the statements A-F to each person. A. I suppose plane jou...
【单选题】The cleaning wasn’t quite bad we were anticipating, but of course, more we cleaned, 7 less we enjoyed it!
A.
most
B.
whether
C.
as
D.
though
E.
the
F.
than
【单选题】某同学在自己编写《红军长征》剧本时，设计了以下几个历史场景，其中与史实相符的是（）
A.
第四次反“围剿”失利使红军被迫进行战略转移
B.
强渡大渡河打乱了敌人的追剿计划
C.
甘肃会宁会师是长征胜利结束的标志
D.
四渡赤水使红军跳出了敌人包围圈
【单选题】The cleaning wasn’t quite bad we were anticipating, but of course, 6 more we cleaned, less we enjoyed it!
A.
most
B.
w hether
C.
as
D.
though
E.
the
F.
than
相关题目：
参考解析：
知识点：
题目纠错 0
发布
