N 开头单词
needle test point 针状测试点
needle sharpener [医药科学]注射针研磨器
needle roller thrust bearing 推力滚针轴承
needle roller bearing 滚针轴承;滚动轴承
needle roller 滚针;卷叶虫
needle puncture biopsy [医药科学]针刺活检
needle point 针尖
needle plate 针板;导针板
needle pitch 针距
needle mushroom 金针菇
needle measuring valve [地球科学]针形流量测定闸阀
needle loom 针织机;针织编带机;导针织机
needle hole 针孔;针洞
needle holding forceps [医药科学]持针钳
needle holder and forceps [医药科学]持针器和钳
needle gun 针击枪(1866~1870年间普鲁士军队用的)
needle globe valve [机械工程]针形截止阀
needle gage 针距