point-source

A facility has been developed a low-energy electron point source ( LEEPS ) microscope or a-emission microscope ( FEM ) .

研制了一台集低能 电子点 源显微镜和 场发射 显微镜于一体的设备.

Nutrient export coefficient of land use is an important parameter for constructing model of-point source pollution.

各种土地利用类型营养盐输出系数是建立 非 点源污染模型的重要参数.

The industry, residential point source river and mine non-point source are of great water pollution load.

确定库湾周边的工业 、 生活污染点源,磷矿面源是构成水污染的主要负荷.

Calculating the environmental damage cost of a single point source is the core of this paper.

单个点源污染的环境损害成本估算是本文的核心.

In the flourishing southeast region of China, agricultural non-point source pollution is extremely serious.

我国尤其是经济快速发展的东南沿海地区, 农业 非 点源污染问题尤为突出.

The research and development of urban Non-point source pollution are summarized in this paper.

本文综述了城市降雨径流污染的研究状况及发展.

Agricultural non-point source pollution is driven by dynamical factors, water character and landform characteristics.

农业面源污染发生的条件主要有动力因素 、 水文条件、地形特点.

Among non-point source pollutions, the agricultural non-point pollution source is the biggest source.

而在各类 非 点源污染中, 农业 非 点源污染最为突出.

The specific discharge is infinite at the vicinity of every point source or sink.

在每个点源或点汇附近比流量为无穷大.

A practical estimation method of non-point source pollution load-mean concentration method was established.

最近又提出了一种简便易用的流域 非 点源污染负荷估算方法 ——— 平均浓度法.

Including client and server-side source and point source.

包括客户点与服务器端源程序以及源代码.

To calculate average perennial load of non point source pollution, a direct measurement method is developed.

本文提出一种适合中国国情的计算非点源污染永久荷载的直接方法.

Functions of fixate point source and model of highway-surface were provided.

给出集中力点源函数,假定了路面模型.

The non-point source pollution caused by agriculture is the main source of today's environmental pollution.

农业 非 点源污染是当今环境污染的重要来源之一.

Soil erosion and non-point source pollution are two serious environmental issues.

土壤侵蚀与 非 点源污染是两大重要的环境问题.