You must measure the length by rule and line.

你必须准确地计量长度。

《新英汉大辞典》

Science will conquer all mysteries by rule and line.

科学家会准确地揭开所有的神秘。

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We use the high speed output function and special function black of PLC to realize to control the working table to move by rule and line.

工作台控制则通过采用PLC的高速输出口和PLC特殊摸块功能技术，实现了工作台的精密控制。

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She said Morsy's state of emergency declaration should be governed by the rule of law, in line with international standards, and urged him to listen to the demands of demonstrators and take action to deal with problems in the judicial system.

CNN: Protesters attack presidential palace in Cairo

He also pledged to end no-bid contracts in Iraq, root out waste and abuse in entitlement programs such as Medicare and Medicaid, require every Cabinet member to scrub department budgets "line by line, " and reinstate a "pay as you go" rule from the 1990s.

CNN: Obama pledges to cut deficit in half at fiscal summit

Those institutions include sound money, private property rights protected by the rule of law and limited government, interest rates and other relative prices that are free to move in line with market forces, and taxes and regulations that do not destroy incentives to work, save, and invest.

FORBES: Ben Bernanke's QE4: Another Step Toward Helicopter Money, And Away From Freedom