The aim is to reverse the decline in the number of tree species or at least to preserve the "genetic material" of all of them.
其目的是扭转树种数量下降的趋势，或至少保存所有树种的“遗传物质”。
Changes in the visa process caused a dramatic decline in the number of foreign students seeking admission to U.S. universities.
签证程序的变化导致申请美国大学的外国学生数量急剧下降。
With this new use for salicylates, we can expect a continued steady decline in the number of headaches suffered by the average citizen of Mentia.
有了水杨酸盐的这种新用途，我们可以预期Mentia 普通市民患头痛的数量会持续稳步下降。
Official figures show a sharp decline in the number of foreign tourists.
官方数字显示外国游客数量骤降。
Changes in the visa process caused a dramatic decline in the number of foreign students seeking admission to the U.S. universities.
签证程序的变化导致申请美国大学的外国学生数量急剧下降。
The decline in the number of people taking in children now appears to have halted.
儿童保育员的数目现在似乎不再减少了。
You have to be able to show a decline in the number of children dying From these diseases.
你也必须让他人知道，儿童死亡人数下降了多少。
For the last decade Danish People "s Church has seen a decline in the number of memberships."
在过去的十年间，丹麦人民教的成员人数呈下降趋势。
The decline in the number of foreign visitors may have been mitigated somewhat by Indian tourists.
国际旅游人数的下降可能会对印度游客的出游有所缓和。
A: Since 2000, there has been more than a 30% decline in the number of retail travel agencies.
答：自2000年来，零售旅行社的数量已经减少了三成。
And faster growth in India has led to a modest decline in the number of poor people in South Asia.
在快速人口增长的印度，南亚的贫困的人群改入也已只有小幅度的下降。
Now that anonymity is no longer possible, there has been a huge decline in the number willing to donate.
现在匿名捐献已经不可能了，自愿捐献的人数少了很多。
You have to be able to show, for example, a decline in the number of children dying from these diseases.
你也必须让他人知道，比如儿童死亡人数下降了多少。
Yet nearly all of this progress was due to a steep decline in the number of very poor people in East Asia.
然而，这些进步几乎都归功于东亚地区贫困人口的大幅减少。
More than 30 years later, concern about the relative decline in the number of physician-scientists persists.
超过30年之后，注意到现有的临床科学家的数目仍在下降。
The dropping of these advance ticket benefits would explain the decline in the number of people buying them.
这样的预售门票裨益的取消，可以解释预购门票人数下降的原因。
The remaining 68 have either made no progress or have seen a decline in the number of unpaid voluntary donors.
其余68个国家不是没有取得进展，就是发现无偿自愿献血者人数有所下降。
In the past ten years there has been a marked decline in the number of young married couples who want to have children.
在过去十年里，年轻已婚夫妇想生孩子的数量已出现了明显的下降趋势。
They led a second year of decline in the number of billionaires since the tech downturn began pressuring the world economy in 2000.
这是自2000年科技经济低迷给全球经济造成压力以来，持续第二年入围人数的大幅减少。
AMI said that whilst the market may be growing, there will be a noticeable decline in the number of companies involved in the sector.
AMI认为随着市场的成长，这一行业的公司数量将大幅度减少。
Decline in the number of birds species indicates environmental deterioration worldwide, said Mike Rands, CEO of Birdlife International.
“国际鸟类联盟”首席执行官迈克·兰德斯说，鸟种类减少反映出全球范围内的环境恶化。
Since the end of the first dotcom bubble, we've seen a gradual decline in the number of people applying to earn computer science degrees.
自从第一次商业网站泡沫结束后，我们发现申请计算机科学学位的人员数量在逐渐下降。
Even while just standing in one place, a rapid decline in the number of signal bars can be observed depending on how the phone is gripped.
即使是站在一个地方不动，信号强度格数也会急速减少，这可以通过用户手持手机的方式观察到。
Since the end of the first dotcom bubble, we "ve seen a gradual decline in the number of people applying to earn computer science degrees."
自从第一次商业网站泡沫结束后，我们发现申请计算机科学学位的人员数量在逐渐下降。
Results : Under the slit lamp , with the increasing of haptic angulation of IOL implanted , it showed a decline in the number and the grades of PCO.
结果：裂隙灯显微镜下可见术后随着人工晶体袢角度的增加，发生后发性白内障的例数及等级均呈下降趋势。
Results : Under the slit lamp , with the increasing of haptic angulation of IOL implanted , it showed a decline in the number and the grades of PCO.
结果：裂隙灯显微镜下可见术后随着人工晶体袢角度的增加，发生后发性白内障的例数及等级均呈下降趋势。
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