Through test analysis, we found that it is caused by the large size grain in this section, as well as the structure stress in this section over the material strength.

经试验分析是由于该段晶粒粗大，淬火时组织应力超过该段的材料强度所致。

youdao

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。

youdao

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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In other words, some machine-based tutoring is approaching the effect size of real human tutoring and there is less variation than one might expect as the grain size of tutoring becomes finer.

FORBES: How Machine-Based Tutoring Could Disrupt Human Tutors

And have your vet inject your pet with a tiny microchip implant (it's about the size of a grain of rice).

CNN: Tips for road tripping with pets

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