Now almost all detergents are concentrated.
现在，几乎所有的洗衣液都是浓缩的。
Explain the action of the detergents in this process.
试解释清洁剂在去污时的作用。
We use huge quantities of sand in industry to make glass, detergents and cements.
我们在这个行业中使用大量的沙子来制造玻璃，清洁剂和水泥。
The detergents and disinfectants used shall be safe and harmless to human health.
用的洗涤剂、毒剂应当对人体安全、害。
Use various kinds of detergents to clean the glass, guard boards and metal door orderly.
依序使用多种清洁剂清洁玻璃、防护板和金属门。
Use various kinds of detergents to clean the glass, guard boards and metal door orderly.
依序使用多种清洁剂清洁玻璃、防护板和金属门。
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