The specimen is loaded by a SHPB system,usingwhich static tensile load is appiled to the specimen and maintained before applying the dynamic load.大概意思是：试样被SHPB系统加载，直到在施加动态荷载前，静态荷载首先被施加在试样上并一直维持此状态。
... 11,2001,intermational terroists hjjacked four commercial airplanes,two of which were used to destroy the twin towers of the world Trade Centerin New York City.老师，这里的be used to不能理解成过过去常常，应该是被动语态，被用于做某事，后面带to的不定式短语作...
...to be. * My brother is a peasant, who I am
not. *The TV set is not the one which used
to be. 先行词不指人本身，而是指人所具有的品质、性格、地位等时，关系代词应用that或which,不用who(
m)。第一句的dancer指职业、能力等方面的特征，关系代词应用t...
Chinese started to use chopsticks a long time ago, which gradually became a part of Chinese life.请教老师，1. which指代的是started to use chopsticks还是use chopsticks?2. 用became还是用has become，哪一个更恰当？谢谢老师。
Among the most popular: paternity and kinship testing,which adopted children can use to find their biological relatives and families can use to track down kids put up
for adoption. 这里的which是什么含义？
There are many activities for which prophylactic knee braces are used as a comprehensive safety measure.请问老师：for which prophylactic knee braces are used as a comprehensive safety measure 是定语从句修饰 activities 吗？
... use of knee braces is quite a vital consideration for different injuries which may be intended for prevention as well as the incorporation of a comprehensive treatment plan.请问老师：which定语从句是修饰什么呢？修饰The use of knee braces吗？这是分隔式定语从句吗，被...
Procedure is also related to the word procedural, which is sometimes used a term for a genre of television drama in which the plot revolves around a technical procedure, like the solving of a police case.be used 后面为什么直接就跟名词而没有介词？ 是省略用法吗？谢...
...看不懂牛津字典的解释是什么成分。a play or a film/movie in which part or all of the story is told using
songs and often dancing.这里a play in which part of the
story中的in which是定语从句吗？which代替哪个先行词呢？还是in which作为介词短语后置定语。但...
...e use of knee braces is quite a vital consideration for different injuries which may be intended for prevention as well as the incorporation of a comprehensive treatment plan.请问老师：which定语从句是修饰什么呢？修饰The use of knee braces吗？这是分隔式定语从句吗，被...
...句与不定式的转换：
1） The farmer used wood to build a house in which he could
store grains.
2） The farmer used wood to build a house in which to store
grains.
3） The farmer used wood to build a house to store grains in.
“介词+关系代词+ to do”结构不能用关系副词...
...ccasion have I ever felt
frightened. 2）新概念3第2课：The
big clock which used to strike the hours day and night was damaged many years
ago and has been silent ever since.书上都说：used
to 表示过去习惯做某事，但强调暗示现在不做了！那么，请看新概念2第79课的...