1) on-off bottom pressure-drop
钻-悬循环压力差
2) cyclic bit pressure
循环钻压
3) circulating pressure
循环压力
1.
Theoretical calculations of circulating pressure of chilled water system in operating mode;
大厦冷冻水系统运行工况下循环压力的理论计算
4) cyclic pressure
循环压力
1.
The influences on freezing-drying of carrot under the modes of applying constant pressure,cyclic pressure and first constant then cyclic pressure are carried out through experiment with radiant heating.
通过实验雇纯辐射加热的条件下比较了恒压（10Pa）、循环压力（10～10000Pa）和先恒压后循环压力3种方式对胡萝卜冷冻干燥的影响。
2.
In order to studying the corner strength performance of the rout & return system of Aluminum-Plastic Composite Panel(APP) for curtain walls under the wind loading,a testing instrument was made to test the corner strength performance under cyclic pressure,and the experiment was carried on for three kinds of APP made by different aluminum alloys.
试验结果表明:随着循环压力频率或压力振幅的增加,铝塑复合板折边系统角部强度急剧下降,且铝材牌号对铝塑复合板折边系统角部强度有着较为明显的影响,5005镁铝系列铝塑板折边系统的角部强度要优于3003锰铝系列的铝塑板,3003锰铝系列的铝塑板优于1100纯铝系列的铝塑板。
3.
It shows that (1) there is an optimum pressure which can make the drying time shortest; (2) higher the range of cyclic pressure, shorter the drying time, however it don t work to change the cycle of cyclic pressure ; (3) Freeze-drying with a constant pressure is better than drying with cyclic pressure; (4) the influence o.
实验表明,恒压干燥时,存在一个较佳压力,使干燥时间最短:提高循环压力幅度,能缩短干燥时间,但改变干燥周期对干燥时间的影响不明显;通过两种方法的综合比较,采用恒压法干燥更为合适。
6) circulation of the low-pressure difference
低压差循环
补充资料：压差卡钻
分子式：
CAS号：
性质：由于钻柱的一部分(通常是钻铤)嵌入井壁泥饼中，在钻柱周围形成不均匀的压力分布而引起的卡钻。发生压差卡钻的原因是有一个渗透性的地层，在钻柱及井壁泥饼和地层间存在压差，压差使钻柱贴附于井壁。
CAS号：
性质：由于钻柱的一部分(通常是钻铤)嵌入井壁泥饼中，在钻柱周围形成不均匀的压力分布而引起的卡钻。发生压差卡钻的原因是有一个渗透性的地层，在钻柱及井壁泥饼和地层间存在压差，压差使钻柱贴附于井壁。
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