How To Use Off-and-on In A Sentence
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off-and-on static
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A total of 100 [micro] g of satratoxin in 100 [micro] l pyridine was reacted with 2 mg of succinic anhydride in a 45 [degrees] C water bath with off-and-on vortexing.
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Mike Kuiack, an investment banker in Vancouver, British Columbia, who often travels to China, was an off-and-on student of Chinese for eight and a half years before he signed on to ChinesePod.
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