72. Very heavy objects or bulky materials like coal, cement, mineral ore, and the like, are weighed in tons. 非常重的物体或者像煤、水泥、矿石等堆积如山的原材料用吨计重。
73. By the end of this century, about 5,000 modern windmills will be in operation, generating about 20% of the electricity of the country. 到本世纪末, (荷兰) 将有5000架现代化的风车投入运行, 生产约全国20%的电力。
74. Agriculture will have to undergo a drastic change to meet the needs of the new situation. Otherwise, the country will starve. 农业必须进行深入的改革, 以满足新形势的需要。否则, 国家将遭受饥荒。
75. In the northern area, it is necessary to plant varieties which are outstandingly resistant to low winter temperature. 北部地区只能种植确实能抗冬季低温的品种。
76. Synthetic, or man-made, diamonds have been manufactured from carbon since the mid-1950s, when General Electric Co. developed the process for making small diamonds for industrial uses. 人们从20世纪50年代中期就开始用碳来制造或人工合成钻石,当时通用汽车公司开发出了生产工业用小钻石的工艺。
77. The WTOs creation on January 1 1995 marked the biggest reform of international trade since the Second World War. 1995年1月1日世贸组织的诞生,标志着第二次世界大战之后国际贸易的最大改革。
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