知道如何计算的净能力千方百计配置使用起重机制造商的负荷图。
Know how to calculate net capacity for every possible configuration of crane using the manufacturer's load chart.
不同制造商给出的实际额定负荷取决于他们采用的定义方法，因此，一般无法直接加以比较。
The actual load ratings quoted by various manufacturers depend on the way in which they are defined so that it is not always possible to make direct comparisons between them.
他们设法拉满负荷400w的最大的，似乎是在制造商的事实，四是在瓦特数位消费者的眼睛更依赖。
They managed to pull a maximum of 400w at full load, and it seems that manufacturers are relying on the fact that quadruple digit wattages are better in the consumer's eyes.
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