宋必双 Ailen
范必双 Bi-Shuang Fan
即使必须失去双眼 even through blinded eyes
必须用双字传送指令 MOVD
双终极必杀 Double Ultras
之间必须为双向可兑换 two-way convertibility
双方必须建立安全联结 Security Associations
洗必泰双氯苯双胍己烷 chlorhexidine
脚踏双凳必坠地 Between two stools you fall to the groun
目的评价双醋瑞因(安必丁)治疗膝骨关节炎(OA)患者的疗效和安全性。
Objective To evaluate the efficacy and safety of diacerein in patients with knee osteoarthritis (oa).
变态过程是双壳贝类由幼虫向成体转变的一个必不缺少的发育阶段。
Metamorphosis is an important stage from larva to juvenile in bivalvia.
弹丸着靶坐标和飞行速度以及飞行方向角是外弹道测试中必测参数，本文针对四幕光幕靶和双光幕测速系统的不足，采用六个大靶面光幕靶，构造出了两类六光幕阵列结构。
Because of drawback of four-screen measuring system and two-screen velocity measuring method, an improved six-light-screen array is presented that is composed of six large area light screens.
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