logo - 刷刷题
下载APP
【单选题】

关于蜂窝铝板幕墙的面板的加工技术要求,下列叙述正确的是______。

A.
在切除蜂窝铝板的铝芯时,应把铝芯清除干净,确保原残余铝芯
B.
直角构件的加工,折角应弯成圆弧形,角缝采用双面胶带密封
C.
制作蜂窝铝板面板时,应采用机械刻槽折边
D.
蜂窝铝板刚度比单层铝板好,制作蜂窝铝板面板时,四周可不折边
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【多选题】高速加工技术的主要优点有( )

A.
材料去除率高
B.
切削力低
C.
热变形小
D.
表面质量高

【单选题】如果按照专业信息工作的基本环节将信息技术进行划分,“风云二号”气象卫星主要属于______的应用。A.信息获取技术B.信息传递技术C.信息存储技术D.信息加工技术

A.
The dictionary is often used to determine the correct spelling of words, or to find out the accepted pronunciation. But such (67) is perhaps not the most important (68) an intellectual point of view. Dictionaries may, (69) , have social importance. It is often a matter of some (70) to the person using the dictionary that he should not suggest to others, by misspelling a word in a letter, or mispronouncing it in conversation, that he is not (71) .
B.
Yet, (72) familiarity with the dictionary, the (73) person is likely to have many wrong ideas about it, and no real (74) of how to use it profitably, or (75) it correctly. For example, it is often believed that the (76) presence of a word in a dictionary is (77) that it is acceptable in good writing. Though most dictionaries have a system of marking words as (78) , or in use only (79) slang, many people, more especially if their use of a particular word has been (80) , are likely to conclude, if they find it in a dictionary, that it is accepted as being used by writers of established reputation. This would certainly have been (81) of dictionaries a hundred years ago. For a long time after they were first (82) established in the eighteenth century, their aim was to (83) only what was used by the best writers, and all else was (84) , and the compiler frequently (85) that his dictionary contained no "low" words. Apparently this aspect of the dictionary achieved such importance in the mind of the average person the most people today are unaware (86) the great change which has taken place in the compilation of present-day dictionaries.

【多选题】高速加工技术的主要优点有()。

A.
材料去除率高
B.
切削力低
C.
热变形小
D.
表面质量高