As water tables have fallen and irrigation wells have gone dry, China's wheat crop, the world's largest, has declined by 8% since it peaked at 123 million tons in 1997.
由于地下水位下降，灌溉井干涸，居于世界之首的中国小麦产量，已经从1997年1.23亿吨的峰值下降了8%。
Green sand casting casting clay weight from a few kilograms until decades kilograms, machine tool lathe bed and clay dry type of casting production can be weighed dozens of tons.
粘土湿型砂铸造的铸件重量可从几公斤直到几十公斤，机床床身而粘土干型生产的铸件可重达几十吨。
Industrial Co., Ltd. Yucheng, Shandong was established in 2002, is China's key enterprises function sugar city, with an annual output of 3000 tons (dry method) modified starch production line.
山东禹城三宝实业有限公司成立于2002年，是中国功能糖城骨干企业，拥有年产3000吨(干法)变性淀粉生产线一条。
The main part of sea transportation is the transportation of dry and bulk cargos, whose volume in 2004 exceeded 2 billion tons, accounting for 30% world seaborne trade volume.
而干散货运输又是海运的重要组成部分，2004年干散货运量已经突破20亿吨，占世界海运量的30%以上。
S ambo Industrial Co., Ltd. Yucheng, Shandong was established in 2002, is China's key enterprises function sugar city, with an annual output of 3000 tons (dry method) modified starch production line.
山东禹城三宝实业有限公司成立于2002年，是中国功能糖城骨干企业，拥有年产3000吨(干法)变性淀粉生产线一条。
The optimal principal dimensions of a 15000 tons deadweight dry cargoship are calculated by two optimization algorithms SCDD and SUMT.
本文用SCDD和SUMT两种最优化方法对一万五千载重吨干货船的主要尺度作了最优值计算。
The optimal principal dimensions of a 15000 tons deadweight dry cargoship are calculated by two optimization algorithms SCDD and SUMT.
本文用SCDD和SUMT两种最优化方法对一万五千载重吨干货船的主要尺度作了最优值计算。
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