大师作文网英语语法问题,请问星号中间“it” 指代什么?求高手指教,感激不尽
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英语语法问题,请问星号中间“it” 指代什么?求高手指教,感激不尽
Secondary stress could be divided into membrane and bending components,just as was done for primary stress,but after the removal of local membrane stress to the primary category,* it *appeared that all the remaining secondary stresses could be controlled by the same limit and this division was unnecessary.
译文：正如主应力那样,副应力被分为薄膜和弯曲部分,但是,在将局部薄膜应力归到主应力类型后,就会有所有剩余的副应力被相同的限制控制,这种分划是没有必要的.
Secondary stress could be divided into membrane and bending components,just as was done for primary stress,but after the removal of local membrane stress to the primary category,* it *appeared that all the remaining secondary stresses could be controlled by the same limit and this division was unnecessary.
译文：正如主应力那样,副应力被分为薄膜和弯曲部分,但是,在将局部薄膜应力归到主应力类型后,就会有所有剩余的副应力被相同的限制控制,这种分划是没有必要的.
it 是个形式主语,真正的主语是that引导的主语从句,类似的句式还有：it is said that, it seems that, it is believeved that, it is reported that, 等.