题目内容
压注成型即压铸成型。
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模具是批量生产同类产品的工具。
压注成型是注射成型一样，原料都在设备中熔化，在压力的作用下注入闭合的模具型腔，因此产品精度较高。
Fill in the blanks. The words in bracketswill give you some hints.St. Valentine's Day - A Lover's DayOn 1) (when?)_____________, St. Valentine's Day, young people in2) (which country?)_____________send cards to the person or persons theylove. This 3) _____________(what?)started more than 4) (how many?)_____________years ago.Today the cards are 5) (how?)_____________and are sent more in funthough with the same purpose of telling someone you love 6) (whom?)_____________.You, however, do not put your name on the 7) (when?)_____________so the person receiving it does not know who it is from. You cover up yourhandwriting 8) (where?)_____________or get someone else to post it for you.If you receive a St. Valentine card, you may have to spend 9) (how long?)_____________trying to find out who sent it. Although you usually have 10) (what?)_____________who it is, sometimes you never find out.
1)我要等到飞机起飞(再走)。2)还没等我意识到怎么回事，2013年就已经过去了。3)那是他的第5次失败。但他还是坚定地相信“失败乃成功之母”4)你睡觉前应先把一切准备好。5)他们已经做到了他们许诺要做的一切。6) 开幕式已经开始了。看!国旗正在升起。7)她说过她一定会来参加这个仪式的。8）你需要休息一下了。从早上起你就一直在电脑前工作。
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