1.   Take-off even in the conventional manner is a critical phase, unforgiving of mechanical failure or human error.

2.   These accusations came at a critical phase in the negotiations.

3.   A government spokesman in Germany said that the agreement represented a positive impulse in the present critical phase.

4.   The origins of the lower critical phase separation phenomenon in polymer blends are not yet clearly understood and three possible causes have been proposed.

5.   Thus the driving force towards lower critical phase separation in polymer-polymer solutions may depend on the system or may be a combination of the effects --.

6.   Russia is going through a critical phase which will determine its political future.

7.   And as the NATO campaign against Serbia moves into its critical phase of operations against those weapons, the time has come to draw the line at that line.

8.   Arafat was scheduled to attend the Arab Summit in Cairo Thursday and sound out regional leaders about his next moves at a critical phase in the peace process.

9.   But their occurrence Saturday is a strong indication that his widening inquiry has reached a critical new phase.

10.   Delta blames its scheduling woes on pilot contract talks, which entered a critical phase this fall.