四取

两组患者均在治疗前后四次取血作纤溶功能动态检测。

Activity of fibrinolytic system was performed dynamically in each group .

走过威权：台湾新闻史报业研究的四个取径

Through Authoritarian Regime : The Four Approaches of Taiwanese Newspaper Industry

我们将此程序运行了四次，取其平均值。

We ran the program four times and took the average .

他们被告知照片在星期四就可以取了。

They were told that the pictures would be ready Thursday .

四催化外取热器爆管原因探析及防治

Cause Analysis and Countermeasures for Explosion of the Fourth FCC External Heat Collector

大连石化分公司四催化外取热器投产不到半年，多次发生换热管爆管或泄漏事故。

The explosion and leakage of heat-exchange tubes occurs now and then in less than half a year since the fourth FCC external heat collector is put into operation in Dalian Petroleum and Chemical Branch Company .

取件人每天下午四点左右来取件，除保留EMS底单外，还对每天所取函件的数量进行登记。

The consignee should fetch the EMS at P.M.4 each day ; I should record the quantity each day and keep the EME original .

复分解四步循环法制取硫酸钾新工艺

New Process of Manufacturing Potassium Sulfate by Four-step - circulation Method of Double Decomposition Reaction

大连石化四催化装置外取热炉爆管原因分析及改造

Cause Analysis of the Tube Explosion of the External Heat Exchanging Furnaces in No 4 Catalytic Plant in Dalian Petrochemical Corporation

介绍了国产单机架四重双卷取热轧机组的技术先进性及在我国铝加工业推广的意义。

The advanced technical features of home-made single-stand four-high double-winding hot mill and the significance of spreading it in our aluminium working industry are introduced .

在该矿1560中段从四个方向钻取岩芯，利用岩石声发射凯塞效应，在实验室对岩芯进行单轮压缩声发射试验，以测试地应力的大小。

The oriented core drilling sampling was conducted in four directions at 1560 level , Kaiser effect of acoustic emission in rock was used and the test for acoustic emission by uniaxial compression of rock core was made in laboratory to measure the extent of field , stress .