若元件加一斜向直线箭头、则是可变量的符号，表示其排量和压力是可调节的。
If the part adds a diagonal straight line arrow, is the variable mark, indicated that its displacement and the pressure are may adjust.
随后介绍了实现符号位水平迭加的方法和效果。
The method and effect of sign bit horizontal stack is also introduced.
在下面两组短句中，加标点符号和不加标点符号意思有什么区别？我明天和大家对答案。
In the following pair of short sentences, do you see the difference in meaning with or without the punctuation marks? I will compare notes tomorrow.
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