廉价是聚酯树脂受到欢迎的主要原因之一.Cheapness is one of the main attractions of polyester resins.将聚酯, 聚已酸乙稀酯从反应器中拿出来.The polyester , polythylene adipate, was removed from the reactor.经过多番实验, 终于找到了一种确能把它们转换成结实的聚酯的方法.After much experimenti...
希尔斯登啜了一口茶，但茶是冰冷的。Hillsden took a sip of tea, but it was stone cold.“ 我不太明白, ” 叔父啜着咖啡说.'I do not quite understand,'returned the uncle, sipping his coffee.他啜饮咖啡.He sipped up his coffee....
The gyroscope compass makes the vessels keep on the fixed course voluntarily.陀螺罗盘自动使船只保持在预定的航线上.The law of conservation of angular momentum may be demonstrated with a gyroscope.角动量守恒定律,可以用回转器来演示.Electrostatic suspended g...
首先, 让我告诉你这个消息.该日志未加标签.First all, let me tell you the news.如果加标签的物品的温度超过预设的限制范围,它就会触发警报.It triggers an alarm if a tagged item's temperature falls beyond preset limits....
People will trade down to own labels which are cheaper.人们会改为购买价格更低的自有品牌。Anything that's cheap this year will be even cheaper next year.今年的便宜货明年会更便宜。More productive farmers have been able to provide cheaper food.农民提高...