Simultaneously, it provides the method to determine the best pressure of header system and optimum frequency of variable frequency pump based on the special working condition.

同时，给出了在特定工况下，确定最佳母管压力和变频泵最佳频率的方法。

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For step 2, I update the header files to make room for the new functions in the system call table.

对于步骤2来说，我对头文件进行了更新：在系统调用表中为这几个新函数安排空间。

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Xavi swung the corner in, Carles Puyol’s run from deep caught out Germany’s zonal marking system, and he powered a header into the net to give Spain the lead.

哈维传出角球，普约尔从德国队的区域盯防网中杀出，以一次头槌攻门为西班牙取得领先地位。

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Sendmail's new NT 3.0 product provides NT administrators with security features, like header scanning, relay access control, and better defenses against theoretical attacks, to which Unix and Linux system administrators are already accustomed.

CNN: Sendmail brings open source technology from Unix to NT