四套

Therefore radio monitoring stations HF station, VHF/UHF station and SHF station, etc.

第四章设计出了一套长春地区VHF/UHF无线电监测网组建的完整解决方案。

Or will the wing, which has been improved from a NACA 23012 profile by adding the "STOL" nose cuff to improve its original abrupt stall characteristics, stand up to the new torsional loads due to a four-fold increase in the twisting moment coefficient (cm from -.008 to -18)?

或将机翼，其中已有所改善，从naca 23012简介加入& stol &鼻子袖套，以改善其原有突然失速特性，站起来，向新的扭转载荷，由于四倍增加在扭力矩系数（厘米从-0 08至- 18）？

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。