chemical造句
(61) Farmers use a lot of chemical sprays on crops.
(62) Chemical sweeteners have no nutritional value.
(63) John works for a large American chemical corporation.
(64) The two elements are synthesized by a chemical process.
(65) This chemical is found in most weed killers.
(66) Au is the chemical symbol for gold.
(67) Callahan posits that chemical elements radiate electromagnetic signals.
(68) The chemical structure of this particular molecule is very unusual.
(69) The chemical industry has a large and growing trade surplus.
(70) The soil has been poisoned with chemical waste from the factory.
(71) We had to learn chemical formulae at school, but I can only remember H2O for water.
(72) The chemical was used to kill a mold that grows on peanuts.
(73) The chemical heightens contrast between different kinds of tissue in the breast.
(74) Once hay has been cut and baled it has to go through some chemical processes.
(75) These photographs show the effects of the chemical on the trees.
(76) A ban was imposed on the use of chemical weapons.
(77) Will you test me on the chemical formulae I've been learning?
(78) Somehow the chemical got from a storage tank into water supplies.
(79) Pollution inspectors were called to a leak from a chemical factory.
(80) We must reduce the danger of war by controlling nuclear, chemical and conventional arms.
(81) A neurotransmitter is a chemical that nerve cells use to communicate with each other and with muscles.
(82) A chemical change takes place in any substance when it burns.
(83) You can ask for a chemical analysis of your tap water.
(84) The action of heat will separate the chemical into a substance and oxygen.
(85) Professor Orr has developed interesting ways of tagging chemical molecules using existing laboratory lasers.
(86) The explosion at the chemical factory caused a major pollution scare.
(87) They are taking precautionary measures to safeguard their forces from the effects of chemical weapons.
(88) Some kinds of acids react on metals to cause chemical changes.
(89) An explosion at a chemical plant has left one worker dead and four injured.
(90) This chemical acts a part of an acid in our experiment.
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