减压

The tall oil from waste fluid in papermaking,first purified by reduced pressure distillation , then some composite additives were added.

使用造纸废液中塔尔油，经减压精馏纯化，适当加入复合添加剂，制得优质醇酸树脂，从而制备出性能较好的工业底漆。

In many of these cases, effective decompression of the spinal canal is a primary goal of treatment, if not to obtain distal recovery, then to achieve local root or segmental recovery.

在这些病例中，有效地对椎管减压是治疗的首要目标。假如不能获得远节段的神经恢复，那么就尽量争取神经根或局部节段的恢复。

The 2300 Direct Operated Reducing Valve is designed for deadend water service where the flow is intermittent and changes rapidly, as on domestic water systems.

系列2300直接操作减压阀适用于室内水系统流量有间歇性变化和变化迅速的终端水应用场合。

Glycidyl benzoate,glycidyl propionate,glycidyl acetate were obtained respectly through a phase-transfer catalytic methodology using sodium benzoate, sodium propionate, sodium acetate and epichlorohydrin as raw materials, and pure products were obtained though vaccum distillation.β-cyclodextrin and glycidyl benzoate, glycidyl propionate, glycidyl acetate, reacted in organic solvent and goal product were

先以苯甲酸钠、乙酸钠、丙酸钠和环氧氯丙烷为原料在相转移催化剂的作用下分别合成了苯甲酸缩水甘油酯、乙酸缩水甘油酯和丙酸缩水酯，经过减压蒸馏，得到相应的纯品；β-环糊精和苯甲酸缩水甘油酯、乙酸缩水甘油酯、丙酸缩水甘油酯在有机溶剂中反应，经过硅胶色谱柱分离，得到了相应的产品，产品经过TLC、IR、1H NMR、MS表征，并研究了温度、反应时间、催化剂等几个因素对反应工艺的影响，结果表明温度和催化剂对反应的快慢有较大影响。

Looked as shown in Figure 4-45 to Figure 4-47 superposition of the various forms of valves, we can see an overlay of each valve of the control valve in accordance with its traditional function of the original to be stacked together in the future pose a loop of these two factors, The rig out of the loop than the traditional form of control valves a lot more, like there are three kinds of relief valve, there are three kinds of valve.

看了图4-45至图4-47所示的各种形式的叠加阀，可知每一种叠加阀依其各控制阀原来传统的功能再加上将来要堆叠构成的回路这两项因素，而拼凑出来的回路形式要比传统控制阀多出许多，像溢流阀有三种，减压阀也有三种。

Optimum conditions are as follows: DMF is used as solvent, compound quaternary ammonium salt as catalyst, n(p-nitrochloro benzene):n=1: 1.2, m:m(p-nitrochloro benzene)=4%, m:m(p-nitrochloro benzene)1:1, and reacted under 155~160℃ for 18 h; reduction reaction is carried out in methanol with Raney nickel, which is used as catalyst; the raw product is added an antioxidant, and distilled simply under reduced pressure to obtain 4-fluoroaniline with excellence quality, purity is over 99.5%, total yield is 89.3%.

实验结果表明，氟化反应的最佳条件为：二甲基甲酰胺为溶剂、复合季铵盐为催化剂，n：n=1：1.2，m（催化剂：m=4%，m：m=1：1，于155~160℃下反应18h；还原反应在甲醇中进行，以阮内镍为催化剂；粗产品加入抗氧剂，减压条件下简单蒸馏得高品位的对氟苯胺。

It was anti-oxidant and stable that the purpose removed the lubricating oil ideal component of Central Africa, improved oil, improve glueing the warm performance and colour of oil, reduce acid value and incomplete charcoal value.

从蒸馏来的减压二，三，四线和丙烷脱沥青来的残渣油料，首先经过酚精炼，然后经脱蜡，补充精制，调合生产成品润油油。

You look back at your logbooks and realize you've spent more time at decompression than at work/uni.

你查看你的logbooks，却发现你用来减压的时间比工作的时间多。

Attention should be paid to the brain damage after decompressive craniectomy. The patients with mediumsized bone window have a high incidence rate of secondary brain damage.

继发于去骨瓣减压的脑损害应引起注意，中等大小骨窗的病例较易发生。

ECG of the subjects under aerospace stress conditions including acute altitude liypoxia, pressure breathing, acceleration, weightlessness, low body negative pressure and explosive decompression and non-pathologic ECG of athletes ,aviators and common workmen were reviewed.

本文概述了航空、航天应激心电图(高空急性缺氧，加压供氧、加速度，失重，高温、下身负压与爆炸减压)、运动员与飞行员以及普通工作人员的非病理性心电图。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。