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Search for suspect in fatal shooting of Maryland judge continues for a fourth day_我的网站
A | HAGERSTOWN, Md. -- A manhunt for a suspect in the fatal shooting of a Maryland judge continued for a fourth day Sunday as authorities completed their search of an area where the suspect's SUV was found.Officials said Pedro Argote, 49, is suspected of gunning down Circuit Court Judge Andrew Wilkinson in his driveway on Thursday, hours after Wilkinson ruled against him in a divorce case. The Washington County Sheriff’s Office said Saturday that the silver Mercedes SUV that Argote was believed to be driving was found in a wooded area in Williamsport, about eight miles (13 kilometers) southwest of Hagerstown, where the judge was shot. On Sunday, the sheriff's office said in a Facebook post that authorities have concluded their search of the Williamsport area.“No further information indicates that Argote is still in the immediate area,” the sheriff's office said. It urged anyone with information on Argote's whereabouts to contact authorities.Wilkinson, 52, was shot the same day he awarded custody of Argote’s children to his wife. Washington County Sheriff Brian Albert said it was a “targeted attack.”Albert said local, state and federal law enforcement agencies are participating in the search for Argote. The U.S. Marshals Service is offering a reward of up to $10,000 for information leading to Argote’s arrest.The Marshals Service said Argote has ties to multiple areas outside of Maryland, including Brooklyn and Long Island, New York; Tampa and Clearwater, Florida; Columbus, Indiana; and North Carolina.Judges across the U.S. have been the target of threats and occasional violence in recent years. President Joe Biden last year signed a bill to give around-the-clock security protection to the families of Supreme Court justices after the leak of a draft court opinion overturning the Roe v. Wade abortion-rights decision, which prompted protests outside the homes of conservative U.S. Supreme Court justices.。 10月19日消息，近日，蓝箭航天“天鹊”真空型液氧甲烷发动机（ TQ-15A）在湖州成功完成了首次全系统热试车，试验时长20秒，试验过程中发动机起动关机正常、工作平稳。据介绍，TQ-15A为目前国内推力最大的真空型液氧甲烷发动机，真空推力达836千牛，是朱雀二号火箭第二批次的二级主发动机。与现有80吨+10吨的二级发动机布局方案相比，取消了游动发动机TQ-11，主发动机由不摇摆改为泵前摆，降低了二级发动机系统复杂度，总重量减轻约400千克，推力室进一步增大喷管面积比，并将涡轮排气引入推力室大喷管进行冷却，解决了涡轮排气引起的干扰力问题。TQ-15A发动机真空推力提高9%、真空比冲提高130米/秒，推力调节范围拓宽至55%~110%且具备三次起动能力，可大幅提升火箭发射任务的适应性。本台TQ-15A发动机为带伺服机构不带大喷管状态，本次试车重点考核发动机系统、总装和各组合件改进方案的可行性，验证起动关机时序的正确性，获得发动机的实测性能数据及工作特性，发动机按预定程序起动和关机、工作平稳，达到了预期设计目标。本轮试车计划开展5次试车（含两次多次起动）、累计试车时间970秒，首次试车结束后将继续考核发动机长程工作可靠性、大范围推力调节时的工作适应性、发动机与伺服系统的工作协调性，多次起动、高低入口压力及过冷推进剂等各种条件下的发动机的工作适应性，全面验证发动机设计方案，并获得大喷管条件下发动机的性能数据。朱雀二号运载火箭自2017年9月立项至今，已完成了第一批次火箭技术状态的研发工作。目前，朱雀二号Y1火箭已出厂并完成低温加注合练，Y2火箭的总装工作正在嘉兴蓝箭航天中心进行。在此基础上，公司研发团队对第二批次火箭进行了研制迭代和优化改进，使之具备更优的性能和更高的可靠性。
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