crack propagation是什么意思

网络释义

用法例句

" Rubber, vulcanized--Determination of crack growth"

GB/T13935-1992硫化橡胶裂口增长的测定

testing method of crack growth using demattia flex-cracking apparatus

硫化橡胶裂口增长的测定方法-曲折试验机法

having a long rip or tear.

有很长的裂口或者裂缝。

Decline in exports and growth in imports.

外贸出口下降、进口增长。

A sudden increase, as in popularity.

激增突然的增长，如人口激增

population growth and national income

人口增长与国民收入

The population is growing too quickly.

人口增长得太快了。

the population increased tenfold.

人口以十倍的速度增长。

Export to africa have increase by more than 25%.

对非洲的出口增长了２５％。

growth rate of domestic export

本地产品出口增长率

a boost in sales, exports, etc

销售、 出口等的增长

the population in Central America is growing explosively.

中美洲的人口飞速增长。

population growth and living standards

人口增长与生活标准

The population keeps in step with the economy

人口与经济同步增长。

the import reached 88.91 billion US dollars, up 16.6%;

进口889.1亿美元，增长16.6％；

the import increased by 16.7% to 13.92 billion US dollars.

进口139.2亿美元，增长16.7％。

Malthusian theory of population growth

马尔萨斯人口增长理论

Both imports and exports continue to grow in volume.

进出口量继续增长。