Because of having high efficiency, energy saving, little effect on environment and steady operation, water source heat pump and ground source heat pump are promising in Guiyang.
水源热泵和地源热泵由于具有高效节能、对环境影响小、运行稳定等特点，在贵阳地区很有发展前途。
The processes of erasing, dust-removing and dust collecting are all carried out inside the operation panel, thus dust has no effect on environment and teachers and students.
擦字、去粉、集尘过程均在操纵箱内进行，粉尘对环境和师生无影响。
Furthermore, the main controlling factors to photochemical reactions, their effect on environment during the reactions and the reaction mechanisms of some matters are described.
另外，讨论了上述物质发生光化学反应的主控因素及其在反应过程中对周围环境的影响作用，并对部分物质的反应机理作了介绍。
The immediate term engineering project of diverting water from South to North, the engineering features and difficulties, the engineering benefit and the effect on environment are expounded.
论述南水北调工程近期规划，工程特点与难点，工程效益及对环境的影响。
Establishes an airbag deployment system used for airbag structure design and improvement, which has no effect on environment condition and saves the experiment cost.
设计了一种应用于安全气囊结构设计与改进的充气试验系统，节省了试验开支，且对环境无污染。
This paper has given an analysis on where arsenic comes from, present pollution situation, and description of arsenic and its compounds' harmful effect on environment and life things.
主要介绍了砷的基本性质及水环境中砷污染的来源、现状，阐述了砷及其化合物对环境和生物所造成的毒害。
This paper has given an analysis on where arsenic comes from, present pollution situation, and description of arsenic and its compounds' harmful effect on environment and life things.
主要介绍了砷的基本性质及水环境中砷污染的来源、现状，阐述了砷及其化合物对环境和生物所造成的毒害。
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