''Here are the beginnings of fire and engineering, the origins of pyrotechnology, and the bridge to more recent ceramic and metal technology,'' said Mr Brown.

“这是火和工程的开端，古代高温技术的源头，更晚的陶瓷、金属技术的桥梁。”布朗说。

youdao

The technology used for making the objects is that of bending metal tubes and wood etching.

制作那个物体用到的技术有金属管弯曲和木料蚀刻。

youdao

There is no particularly special technology needed to make a chainsaw. It's really just plastic and metal parts screwed together with old-fashioned nuts and bolts.

制作链锯确实无需高深科技，只是用传统的螺丝螺母将塑料手柄和金属链条加以组合。

youdao

Although the differences between hot-metal technology and photography seem clear to outsiders, the dominant manufacturers in hot-metal typesetting struggled for years to develop new photo typesetters.

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Although that is two to three times the cost of a metal detector, it is less than the price of the fancy explosive-sniffing equipment that is the main rival technology being developed for detecting metal-free mines.

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Apart from the arrival of less pricey full-frame digital SLRs, the other recent development that has impressed your correspondent is the way imaging chips are migrating from CCD (charge-coupled device) technology to CMOS (complementary metal-oxide semiconductor), used widely in the computer industry.

ECONOMIST: A die-hard analog photographer goes digital