作为信号的

H. heurippa does not crossbreed with its ancestors because species-specific wing markings signal that it does not belong to them.

H。 heurippa不会与它的祖先进行杂交，因为它那种内特异性的翅膀图案会作为信号表明它不属于它们。

Investigation of the PMD compensation system with the DOP as a feedback signal. Chin. J.

偏振度作为反馈信号的偏振模色散补偿系统的性能研究。

The thecretical analysis is done for the problems of the integral initial values, the accumulated error and the excursive error induced by numerical integrals. It is found that these errors possess characteristics of lower frequencies and they can be treated as the low frequency noise.

针对积分初值、数值积分积累误差和数值积分引入的偏移误差进行了理论分析，得出此类误差均具有低频特性的性质，可作为信号低频噪声进行处理。

Paging service is defined as a one-way selecrive singalling system without speech and designed as extension of the telephone network.

寻呼业务作为电话网的延伸，是一种不用说话而具有单向选择的信号系统。

It was often hung in doorways as a sign of friendship.

它过去也常常被挂在门口作为友谊的信号。

Experimental results and theoretical analysis shows that it isentirely possible to ultrasonic achieve a short distance transmission in downhole.

实验结果与理论分析一致表明利用超声波作为信号载体，并借助泥浆介质在井下实现短距离传输是完全可能的。

Ordered to fire a Gun as a Signal of Distress.

船长就下令放一枪，作为求救的信号。

The discharge of a gun as signal or as a salute in military ceremonies.

作为信号或军事仪式的射击行为。

While this was doing, the master seeing some light colliers, who not able to ride out the storm, were oblig'd to slip and run away to sea, and would come near us, ordered to fire a gun as a signal of distress.

正当大家全力抽水时，船长发现有几艘小煤船因经不起风浪，不得不随风向海上飘去；当他们从我们附近经过时，船长就下令放一枪，作为求救的信号。

According to oral traditions in medieval Europe, the end-blown instruments may have served as signaling devices during hunts or battles.

据口头传统，在中世纪的欧洲，底吹文书，可以作为信号装置在亨茨或战役。

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。