middle axle

closes the right eye, rotates the middle axle focusing handwheel, looks until the left eye by the clear scenery.

闭上右眼，转动中轴调焦手轮，直到左眼看以清晰的景物为止。

Ankylosing Spondylitis ( AS) is a kind of systemic disease mainly with chronic inflammation of middle axle joint and the bony attachment point of tendon and ligament, with very low incidence, easily diagnosed as other diseases by mistake in clinic.

强直性脊柱炎（AS）是一种以中轴关节和肌腱韧带骨附着点的慢性炎症为主的全身性疾病，发病率极低，临床上极易误诊为其他疾病。

the speeder for crank-swinging bicycle without middle axle can make the speed change ratio reach to 10-99 times.

一种曲柄摆动无中轴自行车的增速装置，可使变速比达到10至99倍。

the improving and processing technology for the middle axle of medium plate four-roller rolling mill

中板四辊轧机中间轴改造加工技术

the strength check of gearbox's middle axle key and the improvement of the problem of running - off - key

变速箱中间轴键强度校核及脱键质量问题改进

development and application of a comprehensive inductance simulation measure technology for back cover of middle-axle-house

后盖-中桥壳电感模拟综合测量仪的应用