It is also more globally accessible with foreign language citations and si units.

这也用外语引证和SI单位更全球可达到。

Designed with electronic readout, modular air equipment, and solid state timer. Output of the data is in SI units, Metric, or PSI.

配备有电子读数器，标准空气设备和固态定时器。数据输出采用法制、公制、英制单位。

At the same time, the practice shows that the accuracy of fundamental si units could be improved further by redefinition of some fundamental physical constants.

同时，实践证明，用固定若干基本物理常数的数值来重新定义基本单位，可以进一步提高基本单位的准确性。

Units of measure types for the International System of Units (SI).

适用于国际单位系统(si)的度量单位类型。

Most units are SI (International System of units) by default, but if you want to specify fuel in US gallons instead, you can.

大部分单位默认使用SI (International System of Units)，但如果愿意，您也可以以US加仑为单位指定燃料。