• 保存bǎo cún save, conservation, conserve, hold, keep, preservation, preserve, preserving
• 城市节水chéng shì jiē shuǐ urban water conservation
• 节能jiē néng energy conservation
• 节水的好处jiē shuǐ de hǎo chù conservation benefits
• 节约用水jiē yuē yòng shuǐ water conservation; saving water
• 节约用水先进城市jiē yuē yòng shuǐ xiān jìn chéng shì model city of water conservation
• 能量守恒néng liàng shǒu héng conversation of energy; conservation of energy; energy conservation
• 能量守恒定律néng liàng shǒu héng dìng lǜ law of conservation of energy; conservation of energy
• 能源保护néng yuán bǎo hù energy conservation
• 森林保护sēn lín bǎo hù forest conservation
• 守恒shǒu héng conservation; conserve
• 守恒定律shǒu héng dìng lǜ conservation law
• 土壤保持tǔ rǎng bǎo chí soil conservation
• 物质守恒定律wù zhì shǒu héng dìng lǜ law of conservation of mass
• 质量守恒定律zhì liàng shǒu héng dìng lǜ conservation of mass
• 凹āo concave; hollow; sunken; dent; sink; low-lying area
• 靶面积bǎ miàn jī target area
• 北京经济技术开发区běi jīng jīng jì jì shù kāi fā qū BDA(Beijing Economic-Technological Development Area
• 北美自由贸易区běi měi zì yóu mào yì qū NAFTA (North American Free Trade Area)
• 比表面积bǐ biǎo miàn jī specific surface area; specific area
• 边陲biān chuí border area, frontier
• 边疆biān jiāng border area, frontier, border land
• 边区biān qū border area
• 褊biǎn small in area; narrow; cramped
• 表面积biǎo miàn jī superficial area

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