化石清洗、刷洗和涂清漆——所有这些许多化石猎人和博物馆馆长都采用的标准保护措施——极大地降低了恢复古代 DNA 的机会。
Washing, brushing and varnishing fossils—all standard conservation treatments used by many fossil hunters and museum curators alike—vastly reduces the chances of recovering ancient DNA.
昨天欧元区又承受了更严重的压力，标准普尔（Standard & Poor's）大幅降低了葡萄牙和希腊的主权贷款信用评级。
Yesterday the eurozone came under more pressure, as Standard &Poor's slashed its ratings on Portuguese and Greek sovereign debt.
因为标准带来的一致性改善了易用性和易学性，降低了客户培训和技术支持的费用。
Customer training and technical support costs are reduced because the consistency that standards bring improves ease of use and learning.
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