The double type can also be referred to as double precision, although it isn't clear why you would want to type the extra word every time you need a double-precision number.
double类型也可以表示为DOUBLE PRECISION，虽然为什么在需要双精度数字时要输入额外的单词，原因不明。
Of course, if you really do need the extra precision, then you'll need to pick a data type with more precision, such as a double or a BigDecimal.
当然，如果一定需要额外的精度，则可以选择具有高精度的数据类型，比如double或BigDecimal。
The temperature control is achieved by the microcomputer intelligent type double display and PLC temperature controller which can be set up, thus the temperature control precision is reliable.
控温采用可设置的微电脑智能型双显及可编程序控温仪表控温，控温精确可靠；
The temperature control is achieved by the microcomputer intelligent type double display and PLC temperature controller which can be set up, thus the temperature control precision is reliable.
控温采用可设置的微电脑智能型双显及可编程序控温仪表控温，控温精确可靠；
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