The massive earthquake that struck northeast Japan Friday (March 11) has shortened the length of Earth's day by a fraction and shifted how the planet's mass is distributed.
上周五（3月11日）袭击日本东北部的巨大地震使地球每日时长略有缩短，还改变了全球的品质分布。
2
The specimen with larger crack length has larger volume fraction of the martensite and larger transformation zone.
马氏体的体积分数以及相变区域随着裂纹长度的增加而显著增大。
3
The natural scale of a chart is the ratio of a length measured on the chart to a corresponding length measured on the surface of the Earth and is expressed as a fraction.