如何检查氧气压力表内有无油脂?
在进行氧气压力表示值检定时,应先检查表内有无油脂。方法是:先将纯净的温水注人弹簧管内,经过摇荡,再将水倒入盛有清水的器皿内。如水面上没有彩色的油影,即可认为没有油脂。
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Weallfound_____toplaythegame.
Aleading___________intelligenceandoperationscompanyhasreleaseditsanalysisofworldwidereportedincidentsofpiracyandcrimeagainstmariners.
一女性患者,50岁.有风湿性关节炎史,现心悸不安,胸闷不舒,心痛时作,舌质紫暗,脉涩,其治疗应选用
---Wouldyouliketogooutforawalkwithus?
---_____,butImustfinishmyhomeworkfirst.
WhenthepoliceofficerswhotookpartintheKingbeatingwerefirstbroughtto___________,theirlawyersusedthevideotapeasevidenceagainsttheprosecution.