The ivory Buddha carved by Shen Weizhong is the world's smallest piece of sculpture, its size being just four-fifths of a grain of rice.

沈为众雕刻的象牙佛像是世界上最小的雕刻，它只有一粒米的五分之四大。

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It is about the size of a grain of rice and is called the stirrup.

它的大小大约是一粒米，被称为马镫。

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The ivory Buddha carved by Shen Weizhong, a contemporary Chinese sculptor, is the world's smallest piece of sculpture, its size being just four-fifths that of a grain of rice.

中国当代雕刻工艺师沈为众雕刻的象牙佛像是世界上最小的雕刻。 这个象牙佛像只有一粒米的五分之四大。

《新英汉大辞典》

Hewlett-Packard has invented a wireless data chip that can store 100 pages of text or 15 seconds of video on a dot about half the size of a rice grain, with potentially dramatic applications in everything from health care to photography and marketing.

FORBES: Magazine Article

The ultrasound generator used in this technique can focus its energy into a space about the size of a grain of rice.

ECONOMIST: Thermal treatments of cancer are remarkably effective

Micro chipping involves a vet inserting a tiny device, about the size of a grain of rice, under the dog's skin.

CNN: Give a dog a cell phone