The red services (services 3 and 4) represent services that may be under development or otherwise unavailable.

红颜色服务(服务3和4)表示服务正在部署或是不可用。

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Finally, synthetic materials that can replace damaged cartilage in joints or that can be introduced into weakened tissue walls are also under development.

最后，取代损坏软骨关节或可导入虚弱组织壁的合成物质也正在开发中。

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In order to pass through a "gate" between two states, the architecture under development has to be validated for compliance and communicated outside of the architecture team.

为了通过两个状态之间的“大门”，开发中的架构必须得到一致性方面的验证，并在架构团队的外部进行交流。

youdao

The security bond idea - designed to tackle the problem of people coming to the UK for holidays or as students and remaining in the country illegally - was floated several times by the previous Labour government but never implemented and was understood to be under development by the Home Office.

BBC: UK Politics

The AAMC said there would probably be even more under development but state-funded universities are strapped for cash and unable to fund them.

FORBES: As Obamacare Looms, New Medical Schools Open To Address Doctor Shortage

To launch these journeys, Golden Spike officials say existing rockets and spacecraft already built or under development can be enlisted.

MSN: Private moon startup hires lander designer - Technology & science - Space - Space.com | NBC News