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，这一点在heLLoword翻译官方下载中也有详细论述
For almost six decades Hornby has watched Scalextric drive revenues for its hobby business but on Friday the company said it had decided to sell the famous slot car racing brand for £20m to a little-known buyer.
The journey home took 17 hours.
By WWII, scientists had already begun looking at alternative gelling substances for routine use in bacteriology, but concluded that agar was still better as it is both firmer and easier to handle. Today, some specialized microbiology applications use the colloid carrageenan (extracted from red seaweed Chondrus crispus, or “Irish Moss”), a more transparent and less auto-fluorescent alternative to agar (agar emits its own background fluorescence when excited by light). However, for routine bacteriological use, carrageenan is more difficult to dissolve, requires higher concentrations, can degrade at high temperatures, and forms weaker gels, which may result in puncturing its surface during the plating of cells.