touch down基本解释
降落，着陆
touch down
touch down网络解释
1. 降落：目的建立降落(TOUCHDOWN)聚合酶链反应(PCR)方法, 快速检测家族性高胆固醇血症患者低密度脂蛋白受体(LDL-R)基因点突变. 方法设计 LDL-R基因21对引物,根据TOUCHDOWN 原理设计包括启动子和18个外显子特异性片段在内的PCR程序,
2. 落地：起飞 take off | 落地 touchdown | 登记牌 boarding pass
3. touch down
3. 持球触地：touch 持球触人 | touchdown 持球触地 | touchdown passing 向前传球越过对方球门线
4. 着陆,降落：Reconnaissance:侦察,踏勘 | Touchdown:着陆,降落 | Smother:使熄灭,使窒息
touch down词典解释
1. 降落;着陆
When an aircraft touches down, it lands.
e.g. Spacecraft Columbia touched down yesterday...
“哥伦比亚”号宇宙飞船昨天着陆。
e.g. The first large contingent of troops touches down on American soil today.
第一批分遣大部队今天在美国着陆。
touch down英英释义
verb
1. come or bring (a plane) to a landing
e.g. the plane touched down at noon