Keep well and save every kind of art tools, materials and equipment.

妥善保管、节约使用各种美工工具、材料和设备。

youdao

ST: What kind of art tools do you use? What kind of brushes and pens?

您使用什么样的绘画工具呢？比如说什么样的画笔或是铅笔？

youdao

Keep well and save every kind of art tools, materials and keep the art site neatly.

妥善保管、节约使用各种美工工具、材料，保持工作场地整齐清洁。

youdao

Under these circumstances, there may be an alternative to selling the East Europeans state-of-the-art machine tools whose potential for militarily significant abuse is considerable, while at the same time encouraging the necessary retooling of the American industrial base.

CENTERFORSECURITYPOLICY: Center for Security Policy | Submitted Testimony by Frank J. Gaffney, Jr. on The Application Of National Security Export Controls To The East Bloc

The entire class of 2016 will receive a Nokia Lumia 900 powered by the Windows Phone 7.5 operating system, to support the university's mission of providing state of the art technology tools to enhance the student experience and prepare students for success in a rapidly changing world.

ENGADGET: Go to school, get a Lumia 900: all incoming Seton Hall University freshmen to receive a Windows Phone

Instead, they argued, a fortuitous mutation in the human brain may have triggered an explosion in human creativity 50, 000 years ago, leading to a sudden appearance of personal ornaments, skilfully-crafted art, novel tools and weapons.

BBC: NEWS | Science/Nature | Study reveals 'oldest jewellery'