This synthetic chalk could substitute for some of the Portland cement now used in construction.
Revision expert Patrick Wilson warned that charms and rituals were no substitute for proper revision.
There is no real substitute for them in terms of liquidity and market depth.
There is no substitute for this great land and the clear lead it can give.
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It said gunpowder or powder from fireworks can be used as a substitute for match heads.
Scale is not a substitute for radical invention, and the Chinese bureaucracy chronically discourages risk.
Essentially, this thing serves as a bedtime substitute for the missing man in your life.
The rating agencies say they were never supposed to substitute for investors' own due diligence.
And tinkering with food oils is no substitute for heart-protecting drugs or sweeping changes in diet.
There is simply no substitute for hard work when it comes to achieving success.
Anybody who thinks gold is a substitute for productivity is not a productive thinker.
Criminal prosecution and punishment are not the same as, or a substitute for, congressionally imposed sanctions.
Individual action should help make systemic change easier, but it will never substitute for systematic change.
No government program is a substitute for the jobs provided by a growing economy.
Guesses are no substitute for the certitude we need when it comes to such life-and-death matters.
But philanthropy is not a substitute for a working state under the rule of law.
They were detained at Her Majesty's pleasure, the usual substitute for life imprisonment for juvenile offenders.
Size should never outpace capability, and size should not be a substitute for quality.
The president accuses the opposition of resorting to mudslinging as a substitute for policies.
Hopefully, this new exercise can be used a something of a substitute for that one.
But a statutory debt limit is a poor substitute for a constitutional balanced budget amendment.
Is Mousemail.com nothing more than a high-tech crutch, a state-of-the-art substitute for old-fashioned good parenting?
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And a baby's brain is plastic, able to reprogram one area to substitute for another.
What he really needed was to find a long term substitute for the medicine he craved.
Cash transfers, as analyst Pratap Bhanu Mehta says, can never be a substitute for governance.
Even now, Mr Yeltsin seems to view declarations of intent as an acceptable substitute for action.
While not a perfect substitute for a list of government officials, it comes close.
Being licensed as an insurance agent is not a substitute for a securities license.
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As with Mr Morales in Bolivia, constitutional tinkering may prove to be no substitute for governing.
Potentially, this could allow one resonant-tunnelling transistor to substitute for dozens of conventional ones.
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