The types and distributions of DBPs were under the influence and restriction of MCs type, disinfectant dose and reaction time.
典型DBPs产物类型与分布受MCs类型和消毒剂量的影响与制约。
Imposing a speed restriction is simple, but ensuring drivers observe it is more challenging.
实施速度限制很简单,但确保司机遵守它更具挑战性。
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