The temperature of 42 neonates in the incubators was measured at their axillar,back,waist,buttock and rectum at the same time,then the results were compared.
对箱中42例新生儿,在同一时间内腋温、背温、腰温、臀温、肛温测量,结统计学分析。
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An opposed-piston engine is a two-stroke engine with separate oil flow.
一活塞发动机就是单独油流量的二程发动机。
Stripped of many conventional engine parts, the opposed-piston engine is inexpensive and simple to manufacture.
由于取消传统的发动机部件, 活塞发动机造成低廉而且生产工艺相简单。
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