11.   Besides oil and gasoline, cleaning solvents are in the water, many of them traced to a nearby dry cleaner.

12.   The chemical is an industrial cleaning solvent.

a. + solvent >>共 73
industrial 14.94%
chemical 8.05%
cleaning 6.90%
organic 5.75%
toxic 5.75%
chlorinated 4.02%
powerful 2.87%
pure 2.87%
universal 2.87%
suitable 1.72%
cleaning + n. >>共 219
product 6.64%
agent 5.49%
crew 5.36%
service 4.73%
solution 3.58%
house 3.45%
supply 3.19%
company 2.68%
staff 2.55%
fluid 2.55%
solvent 1.53%
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