| gridding (A system of uniformly spaced perpendicular lines and horizontal lines running north and south, and east and west on a map, chart, or aerial photograph; used in locating points) |
网格定位 |
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| grinding (To reduce to powder or small fragments) |
研磨 |
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| gross domestic product (The total output of goods and services produced by a national economy in a given period, usually a year, valued at market prices. It is gross, since no allowance is made, for the value of replacement capital goods) |
国内生产毛收入 |
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| gross national product (Gross domestic product adjusted for foreign transactions, i.e. to the figure for Gross Domestic Product must be added any income accruing to residents of the country arising from investment and other factor earnings abroad and from it must be deducted any income earned in the domestic market by factors owned by foreigners abroad) |
国民生产毛收入 |
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| Ground Water |
地下水美 |
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| ground-based atmospheric profiling experiment |
地面大气剖面实验 |
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| groundwater (Water that occupies pores and crevices in rock and soil, below the surface and above a layer of impermeable material. It is free to move gravitationally, either downwards towards the impermeable layer or by following a gradient) |
地下水 |
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| groundwater endangering (Threat to the quality and quantity of groundwater by activities related to the use of land. As some activities (e.g. landfill) present a particular risk of pollution, the closer an activity is to a well or borehole, the greater the risk of the pumped water being polluted. The type of soil, the geology, the rainfall and the amount of water pumped out of the ground must all be taken into consideration) |
地下水损害危机 |
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| groundwater extraction (The process, deliberate or inadvertent, of extracting ground water from a source at a rate so in excess of the replenishment that the ground water level declines persistently, threatening exhaustion of the supply or at least a decline of pumping levels to uneconomic depths) |
地下水提取 |
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| groundwater pollution (Contamination of any water found under the earth's surface by any leaching pollutants, such as inorganic compounds (chlorides, nitrates, heavy metals, etc.), synthetic organic chemicals (pesticides, fertilizers, etc.) and pathogens (bacteria, parasites, etc.)) |
地下水污染 |
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| groundwater protection (Precautionary actions, procedures or installations undertaken to prevent or reduce harm to the environmental integrity of fresh water found beneath the earth's surface, usually in aquifers, which supply wells and springs) |
地下水保护 |
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| groundwater quality (Groundwater accounts for over 95% of the earth's useable fresh-water resources; over half the world's population depends on groundwater for drinking-water supplies. This invisible resource is vulnerable to pollution and over-exploitation. Effective conservation of groundwater supplies requires the integration of land-use and water management) |
地下水水质 |
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| group atmosphere |
成组大气 |
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| group behaviour (An observable pattern of activity displayed by persons in and as an aggregate) |
群体行为 |
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| guard unit |
火灾看守分队 |
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| gulf (An inlet of the sea of large areal proportions, more indented than a bay and generally more enclosed) |
海湾 |
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| gullet |
水 〔河〕 |
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| GWP |
全球变暖潜能值 |
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| gymnosperm (Any seed-bearing plant of the division Gymnospermae, in which the ovules are borne naked on the surface of the mega sporophylls, which are often arranged in cones) |
裸子植物 |
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| gypsum (A colourless or white mineral used in the building industry and in the manufacture of cement, rubber, paper and plaster of Paris) |
石膏 |
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