“1.2斤饲料可以养1斤南美白对虾，1.8斤饲料可以养1斤金枪鱼，同样长1斤肉，鸡的饲料比是2斤多，猪是3斤，牛羊则需六七斤，所以，大力发展海洋蛋白产业，第一可以节省土地，第二可以节省粮食……”
在昨晚的《Power On》专栏上，Gurman 还进一步分析了预计今年年底上市的触控版 MacBook Pro。
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When new employees come to work at the Boeing production facility in Everett, Washington, one of their first stops is often an exhibition at the company’s Safety Experience Center. It opens on a sombre note: a memorial for famous air disasters, including the successive crashes of two 737 MAXs, in 2018 and 2019, in the Java Sea and Ethiopia. Then, gradually, the tone grows more hopeful. At Boeing, as throughout the aviation industry, disasters led to innovations. Oxygen masks and electronic anti-skid brakes were introduced in the nineteen-sixties, along with bird cannons at airports, to shoo off Canada geese and fellow-fliers. Overhead bins got latched doors that same decade, to keep luggage from toppling onto passengers’ heads. Satellite communication came along in the seventies; automated flight-management systems, capable of plotting a plane’s course, speed, and altitude, in the eighties. Radar systems got more accurate; planes grew stronger, sleeker, and more flexible. Pilots got better at skirting turbulence—or, if they couldn’t, at slowing down and “riding the bumps.”
最终，党员突击队敲定“一基一策”的运输办法——小型设备由骡马队运输，从山谷里面走；大型机械走“空中索道”，顺着钢绳运往山顶；余下的则通过“爬山虎”山地运输车承担，形成一张覆盖全线的运输网。
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