Graphite has an open structure and is easily penetrated .

碳为开放式结构很容易渗透。

Arthur miller wrote of steinbeck , " I can 't think of another american writer , with the possible exception of mark twain , who so deeply penetrated the political life of the country . "

阿瑟.米勒评论斯坦贝克：“我不能想像还另有美国作家，除了马克.吐温可能是个例外，能对政治生活如此鞭辟入里。”

Defence companies such as lockheed martin have seen some of their cyber-defences penetrated .

许多公司如洛克希德马丁航空公司等的网络防御都遭到渗透。

The sperm 's mitochondria are thought to be destroyed after it has penetrated the egg .

人们认为，精子在完全渗透进卵子之后，其线粒体将会被完全摧毁。

Foreign commercial banks have barely penetrated china 's financial system .

外资银行几乎没有渗透到中国的金融系统之中。