英汉双语例句-生物医药大词典

This is necessary because returning echoes are Doppler-shifted to different frequencies—depending on the speed of the bat and its target, usually an unfortunate insect—and often fall outside the frequency range of the acoustic fovea.

中文意思：
这种功能想必很重要，因为回声会因都卜勒频移而改变频率（改变程度视蝙蝠自己与目标物的移动速度而定，目标通常是只倒楣的昆虫），改变后的频率往往落到听觉中央窝的敏感範围之外。

以下为相关句子列表(点击查看，可以看对应的解释）：

	This is my watch, it's a Swiss one.			这是我的手表，它是瑞士制的。
	This is my work to my satisfaction.			这是我的得意之作。
	This is my working number ,please mark/grade my service and put it into the suggestion box ,thank you for your cooperation .			这是我的工号牌，请为我的服务打分，请投入意见箱，谢谢合作！
	This is natural enough because advertising is designed for just that purpose.			因为设计出某一广告正是为了达到这一目的。
	This is nearly a green oath of the whole generation.			他们在各自的领域不断的推广和实践自己的绿色誓言。
	This is necessary because returning echoes are Doppler-shifted to different frequencies—depending on the speed of the bat and its target, usually an unfortunate insect—and often fall outside the frequency range of the acoustic fovea.			这种功能想必很重要，因为回声会因都卜勒频移而改变频率（改变程度视蝙蝠自己与目标物的移动速度而定，目标通常是只倒楣的昆虫），改变后的频率往往落到听觉中央窝的敏感範围之外。
	This is necessary to avoid water hammer and/or shock damage.			这样做有必要，可以避免水锤和/或水冲击造成的损坏。
	This is necessary to avoid water hammer or shock damage.			这样做有必要，能够避免水锤或水冲击的破坏。
	This is necessary to reverse the economic slide into unemployment, lack of growth, and trade deficits that have plagued the economy for the past six years.			这对扭转经济滑坡；滑到失业高，增长少和已经困扰经济达6年之久贸易赤字来说是必要的。
	This is needed to “overcome the endemic inertia of national administrations to tackling VAT losses in other member states”.			只有这样，才能“消除国内行政机构在处理其它成员国增值税损失时普遍存在的惰性”。
	This is needless to say, a very precarious path for a professional to negotiate as he or she looks up to political master.			不用说，这对于专业人士而言是一条危险之物，因为他们在与政治层磋商时要看政治领导人的脸色?