Medico - surgical equipment . Orthopaedic instruments . Drive connections . Part 2: screwdrivers for slotted , for cruciform and recessed ned.外科医疗器械.矫形外科设备. 传动连接. 第2部分: 十字形和一字形旋具.Underneath the rear fuselage a large air ...
It aims to enhance teachers’ professionalism.它旨在提高教师的专业精神。We must enhance the economic strength of the collectives.增强集体经济实力.Sound engineers utilize a range of techniques to enhance the quality of the recordings...音响师运用一系...
Springs and rivers that drain into lakes carry dissolved nitrates and phosphates.流入湖中的泉水和河水携带了溶于水的硝酸盐和磷酸盐。Nitrates are chemicals that occur naturally in water and the soil.硝酸盐是水和土壤中自然存在的化学物质。Nitrates leach from the soil ...