Which of the following words is 漏油?
A. oil leakage
B. full oil
C. oil filling
D. oil sludge
Which of the following words is 过滤装置?
A. filtering tank
B. filtering unit
C. incinerator
D. oil separator
Which of the following words is 安全装置?
A. safe guard
B. safety device
C. safety record
D. safe work
Which of the following words is 防污染装置?
A. pollution device
B. anti-pollution device
C. anti-virus
D. prevention device
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