【简答题】List the main advantages of the casting process.
【多选题】Sand casting Sand casting , the oldest casting process, consists of
A.
placing a pattern having the shape of the desired casting in sand to make an imprint ( 印记 )
B.
incorporating a gating system
C.
filling the resulting cavity with molten metal
D.
allowing the metal to cool until it solidifies
E.
breaking away the sand mold
【多选题】关于化学消毒剂的使用原则,正确的是
D.
消毒物品应全部浸泡在消毒液内,器械的轴节应打开
【单选题】下列关于化学消毒剂的使用原则,不正确的叙述是
B.
严格掌握消毒剂的有效浓度、消毒时间、使用方法
【判断题】The casting process is subdivided into two distinct subgroups: expendable and non-expendable mold casting.这句话的意思是焊接工艺可以分为截然不同的两种:消失模铸造和非消失性模铸造。
【判断题】The casting process can be economically competitive with other manufacturing processes.
【判断题】The casting process basically involves (a) pouring molten metal into a mold after the part to be manufactured, (b) allowing it to cool and solidify, and (c) removing the metal from the mold.
【单选题】下列关于化学消毒剂的使用原则,说法不正确的是
B.
消毒物品应全部浸没在消毒液内,器械的轴节不打开
C.
浸泡消毒后的物品使用前应先用无菌生理盐水冲洗
【简答题】Please explain the advantages of the metal casting process.
【简答题】请结合本节课课程资料自行翻译以下内容。 It is estimated that casting are used in 90% or more of all manufactured goods and in all capital goods machinery used in manufacturing. The diversity in the end use of metal casti...