Despite anything the science of medicine may have achieved, the immune system is our main defence against disease.

不管医疗科学已取得了什么样的进步，免疫系统仍是我们抵抗疾病的主要防御手段。

《柯林斯英汉双解大词典》

Project supported by the Chinese Defence Advance Research Program of Science and Technology, China (Grant no.).

中国国防科技预研项目(批准号：)资助的课题。

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The research of blast, combustion, armour piercing, trajectory and aviation posture can't be done without high speed photograph in national defence science and technology research field.

在国防科技研究领域，爆炸、燃烧、穿甲、弹道、飞行姿态等的研究都离不开高速摄影。

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So I had to undergo a very extensive training programme so I had awareness of those wider areas of defence science and technology so that I could identify issues, pass them back to the UK and get the right advice.

BBC: What do UK's military scientists do on the frontline?

Ni Lexiong, director of the Sea Power and Defence Policy Research Institute at the Shanghai University of Political Science and Law, says the Chinese military may have been reacting to provocation by Japanese naval vessels, Hong Kong's South China Morning Post reports.

BBC: Japan Maritime Self-Defense Force destroyer Yuudachi

He thinks genetic modification of this humble crop, so far from the world of advanced science, will provide the most comprehensive defence and be the best way to boost yields.

ECONOMIST: A crucial crop in new trouble