With very good air-tightness, can conduct reaction under negative pressure and easily assemble distillation, reflow device.
有很好的气密性可在负压下反应方便地组装成蒸馏回流装置。
Under negative pressure, nickel sulfate can be recovered from the liquid waste of copper electrolysis through the boiler stream. The recovery rate of nickel sulfate comes up to 98 %.
在负压的条件下，利用锅炉蒸汽回收铜电解废液中的硫酸镍，其回收率达到98%以上。
Security: Our equipments have ant-blocking device, also have pressure gauges, alarms, safety valves and vacuum equipment. Normal operation are going on under negative pressure or ordinary pressure.
答：(1)安全：我们的设备有防堵塞装置，还配有压力表、报警器、安全阀、负压设备，正常运行都是负压或常压下工作。
Methods Automatic biopsy device with negative pressure under the guidance of ultrasound through an oblique Angle were performed in 669 patients with nephropathy.
方法应用自动同步负压活检装置，在超声引导下斜角进针对669例肾脏疾病患者进行肾穿刺活检。
Whether positive or negative, ultimately the problem with family expectations is that they put you under pressure and you don't feel free to just be yourself.
不论是积极还是消极，家人期望的最终问题是他们会把你放在压力下，你无法有做自己的自由。
The novel and hermetical structure is suitable for operation under the states of both positive and negative pressure.
新颖的密封式箱体结构，适用于正、负压力状态下的运行。
Under the pressure of the increased retirement staff, the active and positive factors of the retirement personnel should be brought into full play to get rid of the negative factors.
面对高校离退休人员增加的巨大压力，要善于调动离退休工作中的积极因素，消除不利因素，充分发挥高校离退休人员在离退休工作中的重要作用，推动高校离退休工作的前进。
The jet micro-bubble generator is a equipment which em rains and smashes the air under the negative pressure formed by jet flow, in order to obtain the micro-bubble.
射流微泡发生器是在射流形成的负压作用下将空气吸入，并粉碎成微小气泡。
The under-balanced drilling technology is based on how to control the bottom negative pressure which is related to the pressure computation of multiphase flow in annulus .
井底负压值控制是欠平衡钻井技术的基础，而井底负压值的大小与环空多相流的有关压力计算有关。
The controls for drum water level, steam temperature, and negative furnace pressure are in analog control, among them, the drum water level control is under fuzzy PID control.
汽包水位、蒸气温度、炉膛负压的控制采用模拟调节方式，其中汽包水位则选择了模糊PID调节。
The negative pressure for under balanced perforating is a key parameter in well perforating design. It can directly influence the productivity and borehole stability of a perforated well.
负压射孔技术的关键参数之一就是负压差的大小，它直接影响油井射孔完成后的产能以及孔眼的稳定性。
METHODS:We decoct the Chinese medicine Scutcllaria Baicalensis Georgi by adding water, then drainaging and filtering it under the negative pressure before we collect the filtrate.
方法：将中药黄芩加水熬制，采用负压抽滤后合并滤液，用减压蒸发的方法将药液浓缩制成水提液。
The negative pressure air exhausting device can effectively prevent combustible gas from exploding under positive pressure so as to ensure safety production.
负压排风装置可有效预防可燃气体正压爆炸，保证安全生产；
The negative pressure air exhausting device can effectively prevent combustible gas from exploding under positive pressure so as to ensure safety production.
负压排风装置可有效预防可燃气体正压爆炸，保证安全生产；
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