l①亲爱M朋友,愚晨臁温;他l就是普通而不平凡的人——英国工程师贝尔德。②贝尔德于1888年出生在英国苏格兰一个普通的牧师家庭。少小时肯于思索,充满梦幻,爱摆弄机械。为探索机械奥秘,他把家中靠机械转动的东西都拆遍了。③20世纪20年代,科学家们在思考:既然人类能1够实现长距 l ① Dear friend M, foolish morning temperature; he is ordinary and not ordinary people - Baird, a British engineer. Baird was born in 1888 in an ordinary pastor family in Scotland, England. When young is willing to ponder, full of dreams, love playing with machinery. To explore the mysteries of machinery, he disassembled everything by mechanical rotation in his home. In the 1920s, scientists were thinking: since humans can achieve long distances