That's more than adequate for most tasks, but you do need to keep in mind that it's not decimal arithmetic, and that every float operation can suffer a new rounding error.
但是，我们还是要牢记我们做的并不是十进制运算，任何一个浮点预算都有可能产生一个新的错误。
Fill in the cargo's volume, keep three decimal fraction.
填写货物体积，保存三位小数。
Digital temperature sensor based on the thermometer DS18B20 design, the three digital display temperature, keep one decimal place.
基于数字温度传感器ds18b20的测温仪设计，三位数码管显示温度值，保留小数点后一位。
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