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Most pump manufacturers recommend that the suction piping dimension for centrifugal pumps be ().
客专ZPW-2000A轨道电路设计长度应符合列控车载设备可靠接收及()防护的要求,用于站内时还应符合车站联锁系统可靠工作的要求。
牛初乳富含5种免疫球蛋白——()、()、()、()、(),其中以()为主。
牙周病维护治疗中复查间隔应是( )。
发生工伤,但单位说没有签订劳动合同,所以不负责,不帮我申请工伤认定,合理吗?
冬季,建筑物南面的植物比北面受冻程(),这是因为建筑阻挡避免了南面植物直接受到西北风的吹袭,形成特定的()。
患儿,男,10个月,因面色苍黄2个月余,伴智力、动作发育落后来诊。生后一直母乳喂养未添加辅食,其母长期素食。查体:皮肤黏膜苍黄,对周围反应差,舌唇颤抖,心肺正常,肝肋下3厘米,脾肋下0.5厘米,踝阵挛阳性。外周血象血红蛋白75g/L。最可能的诊断是()
甲亢患者常出现的脉搏是()
失能收入保险给付额的最高限额与被保险人在伤残之前的正常收入相比是()。
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In the event of the cylinder starting valve leakage () would pass into the air p...
In the event of the cylinder starting valve leakage () would pass into the air p...
When the starting air valve closes on one cylinder, another starting air valve h...
Each cylinder has one starting valve which is usually opened by air pressure and...
Each cylinder has one starting valve which is usually opened by air pressure and...
The starting air entering the cylinder begins when the piston()
The opening or closing of the cylinder starting valve is controlled by ().
The opening or closing of the cylinder starting valve is controlled by ().
When the starting air valve closes on one cylinder, another starting air valve h...
The starting air entering the cylinder begins when the piston()