US R&D is responsible for the writing and maintenance of this file.

研发部负责本文的编制和维护；

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Vitamin D is essential in the development and maintenance of teeth and bones. A lack of Vitamin D has been linked to Osteoporosis.

维生素D是牙齿和皮肤的生长和维护的必要元素。如果缺乏维生素D，是很容易得骨质疏松症的。

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An interactive 3-d experience for risk managers to test your knowledge of safety, security and maintenance issues in relation to your home or small business.

一种交互式3 - D的风险管理经验，以测试有关您的家庭或小型企业的安全，保安和维修问题的知识。

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Lockheed Martin purchased the system in May, and their contract with D-Wave includes operations and maintenance by D-Wave.

FORBES: Lockheed Martin Installs Quantum Computer

That intelligence helped mechanics know how the car was performing and allowed them to plan better for the maintenance they'd do when it stopped for refueling.

FORBES: The Indy 500 Goes Wireless

Calcium is involved in bone growth and maintenance, while vitamin D helps bones absorb the calcium.

WSJ: Vitamin D and Calcium Supplements May Not Stop Fractures