human activities effect的意思|示意

The spread of tomato is a result of human activities, but its velocity and range are restricted by both natural and human factors. And it has great effect on human being.

番茄的传播是人类活动的结果，它的传播速度、传播范围受到自然和人类双重因素的制约，同时也对人类产生反作用。

Human activities contribute to global warming by enhancing Earth's natural greenhouse effect.

人类活动促成的全球变暖，加强了地球的自然温室效应。

So we can conclude that Huanglong Ravine travertine degradation, to some degree, should attribute to the effect of human activities.

因此，我们推测，黄龙钙华景观的退化，在一定程度上可能应归结为人类活动的影响。

Objective: To observe the effect of cryopreservation on activities of human bone marrow cells.

目的：探讨人骨髓在液氮长期保存下造血细胞活力。

Water quality was polluted to a certain degree in main stream of Tarim River under the effect of human activities.

受人类活动影响，塔里木河干流的水质受到不同程度的污染。

It is one of the main methods by which the human activities have effect on the environment and the most direct and important factor that drives land cover to change in history.

它是人类活动作用于自然环境的主要途径之一，是历史时期土地覆被变化最直接和主要的驱动因子。