Now the speed table is mostly electronic, use LED digital tube or LCD instantly shows, show more intuitive.
现在的车速表大多是电子式的，用LED数码管或LCD即时显示，显示更加直观。
You can create indexes on one or more columns of a table to speed SQL statement execution on that table.
用户可以在表的一列或数列上建立索引，以提高在此表上执行sql语句的性能。
The table reciprocating is controlled by the convertible frequency electric installation, so the speed is constant and adjustable and the wood-panels cutting are more tidily.
台面往复由变频电气装置操纵；速度匀速可调，板材切割更整齐。
应用推荐