1) SD tank bottom valve
SD池底阀
2) Sprague-Dawley
SD
1.
Methods Sprague-Dawley rats at different age(4-5 weeks,67 weeks and 8-9 weeks) were superovulated with PMSG and hCG at a dosage of 10 IU, 20 IU,30 IU,40 IU or 50 IU,respectively.
目的建立SD大鼠的有效超数排卵程序,为大鼠胚胎生物工程相关技术的研究提供参考。
3) foot-valve
底阀
1.
Usual foot-valve often present flowing from one stratum to another and returning sands,etc.
普通底阀无防砂和定压开启功能,对出砂严重的井况常出现层窜、返砂等问题。
2.
A new type of fitter mesh which is used with pump s foot-valve has been developed.
研制出了一种泵底阀用节能滤网组件，并对其节能机理进行了初步分析。
4) bottom valve
底阀
1.
The use analysis of the bottom valve in the due-shaft cylinder;
底阀在双伸缩立柱中的应用
2.
Combined with structure characteristics of doubly telescopic prop,a calculation method of opening pressure was put forward and mechanics characteristics and analysis method of bottom valve were introduced as well.
结合双伸缩立柱底阀的结构特点,给出了一种开启压力的计算方法,并着重阐述了底阀的力学特点和分析计算方法。
5) filter bottom
滤池底;滤底
6) valveless filter
无阀滤池
1.
A resistance adjusting (RD) method for influent control of valveless filter which prevents water and air from entering the filter automatically is presented in this paper.
论述了无阀滤池进水系统调阻控制原理。
2.
The resolution of the problems in the de-ironing operation of valveless filters enables them to meet the designed capacity, improves their operating stability, and heighten the pass rate of their water quality to or over 98%.
改进无阀滤池在除铁工艺运行过程中存在的问题,使出水量达到设计能力,运行稳定性提高,水质综合合格率达到98%以上且便于操作管理。
3.
The combined process of A2/O and valveless filter was used to treat sewage from the living quarters of Kunming Shipping Company.
采用A2/O和无阀滤池组合工艺处理昆明船舶公司生活区的污水,介绍了该工艺的特点和设计参数。
补充资料：溢流阀、顺序阀、减压阀的比较
溢流阀 | 减压阀 | 顺序阀 | ||
控制油路的特点 | 通过调整弹簧的压力控制进油路的压力，保证进口压力恒定，p2＝0 | 通过调整弹簧的压力控制出油口的压力，保证出口压力p2稳定 | 直控式－通过调定调压弹簧的压力控制进油路压力；夜控式－由单独油路控制压力 | |
出油口情况 | 出油口与油箱相连 | 出油口与减压回路相连 | 出油口与工作回路相连 | |
泄漏形式 | 内泄式 | 外泄式 | 内泄式 | |
进油口状态及压力值 | 常态 | 常闭（原始状态） | 常开（原始状态） | 常闭（原始状态） |
工作状态 | 进出油口相通，进油口压力为调整压力 | 进油口压力低于出油口压力，出油口压力稳定在调定值上 | 进出油口相通，进油口压力允许继续升高 | |
联接方式 | 并联 | 串联 | 实现顺序动作式串联作卸荷阀用时并联 | |
功用 | 定压、溢流或安全作用限压、稳压、保压 | 减压、稳压 | 不控制系统的压力，只利用系统的压力变化控制油路的通断 | |
进油腔压力p1控制阀芯移动 | 出油腔压力p2控制阀芯移动 | 进油腔压力p1控制阀芯移动 | ||
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条