一些工程问题,叙述比较琐碎,问题又显得比较复杂, 如果直接根据题中的已知条件列式解答,难度较大,这时我们可以在不改变题意的前提下,适当地把条件进行一些转换,变一种说法,使其比原题的叙述更为简捷明了些,数量关系更清楚些,问题也就变得简单了。例:甲、乙、丙、丁四人合做了一批零件,甲做的个数是其他三人工作总量的一半,乙做的是其余三人工作总量的 Some engineering problems, the narrative is more trivial, the problem appears to be more complicated, if directly based on the known conditions of the column formula, it is more difficult, then we can under the premise of not changing the subject, the conditions for some Conversion, change a saying, make it narrower than the narrative of the original title more clear, the number of relations more clearly, the problem becomes simple. Example: A, B, C, D four people to do a batch of parts, the number of A to do is the other three half of the total work, B to do the work of the remaining three total