The world's first 3D-printed rocket launched successfully on Wednesday, marking a step forward for the California company behind the innovative spacecraft, though it failed to reach orbit.

世界上第一枚3D打印火箭于周三成功发射，标志着研发这艘创新航天器的加州公司向前迈出了一步，尽管它未能进入预定轨道。

Billed as less costly to produce and fly, the unmanned Terran 1 rocket launched from Cape Canaveral, Florida at 11:25pm （0325 GMT Thursday） but suffered an "anomaly" during second-stage separation as it streamed toward low Earth orbit, according to a livestream broadcast by aerospace startup Relativity Space.

据航空航天初创公司Relativity Space的直播，号称生产和飞行成本较低、无人驾驶的“人族1号”（Terran 1）火箭，于晚上11:25从佛罗里达州卡纳维拉尔角发射，但在进入近地轨道时，第二级分离时出现“异常”。

The company did not immediately give further details.

该公司没有立即提供进一步的细节。

While it failed to reach orbit, Wednesday's launch proved that the rocket – whose mass is 85 percent 3D-printed – could withstand the rigors of lift-off.

虽然未能进入预定轨道，但周三的发射证明，这枚85%是3D打印的火箭，能够承受起飞的严酷条件。

The successful launch came on the third attempt. It had originally been scheduled to launch on March 8 but was postponed at the last minute because of propellant temperature issues.

这是“人族1号”第三次尝试发射。它原计划于3月8日发射，但由于推进剂温度问题而在最后一刻被迫取消。

A second attempt on March 11 was scrubbed due to fuel pressure problems.

3月11日的第二次尝试，由于燃料压力问题而取消。

Had Terran 1 reached low Earth orbit, it would have been the first privately funded vehicle using methane fuel to do so on its first try, according to Relativity.

根据Relativity公司的说法，如果“人族1号”到达近地轨道，它将成为世界首枚入轨的液氧甲烷火箭。

Terran 1 was not carrying a payload for its first flight, but the rocket will eventually be capable of putting up to 2,755 pounds （1,250 kilograms） into low Earth orbit.

“人族1号”在首次飞行中没有携带有效载荷，但该火箭最终将能够将2755磅（1250公斤）的载荷送入近地轨道。

The rocket is 110 feet （33.5 meters） tall with a diameter of 7.5 feet （2.2 meters）。

火箭高110英尺（33.5米），直径7.5英尺（2.2米）。

Eighty-five percent of its mass is 3D-printed with metal alloys, including the nine Aeon 1 engines used in its first stage and the one Aeon Vacuum engine employed in the second.

其85%的部件是用金属合金3D打印的，包括第一级使用的9台Aeon 1发动机和第二级使用的1台Aeon Vacuum发动机。

It is the largest ever 3D-printed object and was made using the world's largest 3D metal printers, according to the Long Beach-based company.

据这家总部位于长滩的公司称，这是有史以来最大的3D打印物体，是用世界上最大的3D金属打印机制作的。