71.   A new computer system for checking on chemical reactions deep below the ground could dramatically improve monitoring of the build-up of explosive gasses.

72.   A group-wide waste definition has been agreed and for CandP this includes unavoidable waste resulting from a chemical reaction -- unless a market is found for it.

73.   It highlights the way nature uses the same raw materials as man and carries out equally complex chemical reactions, night and day.

74.   Chemical reactions -- slow, fast and explosive!

75.   My own line is studying the effect of lasers on chemical reactions to see if lasers can be used to stimulate or generate new novel types of chemical process.

76.   All those lasers would derive their energy from powerful chemical reactions and destroy the missiles by heating them to high temperatures.

77.   American vaccines, he said, generally rely on chemical reactions and require several inoculations to be effective.

78.   Among other things, he hopes that they can act as an extremely tiny light source or power chemical reactions that would be analyzed by the tiny chips.

79.   An inert gas is used in such encasements to purge its atmosphere of oxygen, which encourages chemical reactions, and impurities.

80.   And it can be used to produce electricity directly through chemical reactions in a device called a fuel cell.

a. + reaction >>共 932
immediate 12.12%
rapid 6.15%
allergic 5.16%
chemical 4.33%
initial 3.53%
public 3.45%
mixed 3.31%
first 3.11%
official 2.49%
negative 2.40%
chemical + n. >>共 799
weapon 19.19%
company 6.01%
reaction 4.82%
plant 3.35%
industry 2.70%
product 2.34%
agent 2.11%
compound 1.64%
maker 1.51%
process 1.24%
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