It is actually quite difficult to find reliable statistics on the issue for many schools.
对于许多学校来说，要找到关于这个问题的可靠统计数据是相当困难的。
Since it is largely unregulated, reliable statistics are hard to come by.
由于它大部分都不受监管，可靠的统计数据是很难得到的。
I did some research and am unable to come up with any reliable statistics.
我做了一些研究，没能找到任何可靠的统计数据。
Lack of reliable statistics and unpronounceable names of diseases have all hampered efforts to bring them out of the shadows.
缺乏可靠的统计和难以正确发音的疾病名称均让这些疾病难以步出阴影。
Reliable statistics are hard to come by, not least because many factories operate in a legal netherworld, but the severity of the slump is plain.
很难取得可靠统计数据，这不光因为很多工厂在民间进行合法经营，而且缩减的强度不用统计也显而易见。
He says that migrant workers rarely know if they are insured and that this is partly why there are no reliable statistics on how many are covered.
他说，农民工很少知道他们是否有医保，这是为何没有可靠的覆盖人数统计数据的部分原因。
The most reliable statistics indicate that Subversion is growing at a rate of more than 200,000 downloads per month, with over 2.5 million Subversion users.
最可靠的统计数据表明Subversion正以每月20多万次的速度增长，有着250万的用户。
"Machine learning often provides a more reliable form of statistics which makes data more valuable," says Winston.
温斯顿说：“机器学习往往提供更可靠的统计形式，使数据更有价值。”
Reliable health data and statistics are the foundation of health policies, strategies, and evaluation and monitoring.
可靠的卫生数据和统计数字是卫生政策、战略和评价与监测的基础。
For health agencies like WHO, civil registration systems are the most reliable source of statistics on births and deaths, and causes of death.
对于像世卫组织这样的卫生机构，民事登记系统是最为可靠的出生、死亡和死因统计数据来源。
At present, some 85 countries, representing 65% of the world's population, do not have reliable cause-of-death statistics.
目前，大约85个国家(占世界人口的65%)不具备可靠的死因统计资料。
Though the statistics are less reliable for the years before 1950, it seems that in the early 20th century potential output grew rapidly thanks both to technological innovation and rapid immigration.
尽管1950前的统计数据并不是那么可靠，似乎在20世纪早期由于技术革新和加速移民潜在产出增长快速。
I was a bit shocked when I began reporting on agricultural markets that statistics on the amount of food being produced and the level of reserves on a global level are not reliable.
令人震惊的是当我开始对农业市场的生产和存储水平的数据进行报道的时候发现这些数据并不可信。
To improve the utilization of the equipment and save maintenance costs for the hospital, the statistics and analysis of maintenance costs provide reliable data to carry out the preventive maintenance.
维修费的统计与分析为开展仪器设备预防性维护保养提供可靠数据，以便提高设备的使用率，同时为医院节省维修费用。
Mexico State's criminal statistics are "not very orderly, reliable or even available," says Juan Francisco Torres Landa of Mexico United Against Crime, a pressure group.
一个叫墨西哥联合打击犯罪的组织施压集团负责人JuanFranciscoTorres Landa说，墨西哥州的犯罪统计数字“没一点顺序，不可靠，甚至可以说没有用”。
Mexico State's criminal statistics are “not very orderly, reliable or even available,” says Juan Francisco Torres Landa of Mexico United Against Crime, a pressure group.
一个叫墨西哥联合打击犯罪的组织施压集团负责人JuanFranciscoTorres Landa说，墨西哥州的犯罪统计数字“没一点顺序，不可靠，甚至可以说没有用”。
Over 100 countries, representing more than two-thirds of the world's population, do not have systems for civil registration and vital statistics that produce reliable data on causes of death.
共有100多个国家(占全球三分之二以上人口)缺乏能够提供可靠死因数据的民事登记和生命统计系统。
This paper will statistics and verify its feasibility and effectiveness by experiments, with a view to provide a more reliable data and reference for the researchs later.
本文采用实验的方法，统计、验证该方法的可行性及有效性，以期为之后的研究提供更为可靠的数据和参考意见。
The platform based on unified coding standard and integrated data information were established, which provided automatic, reliable, and complete data source for line loss statistics and calculation.
基于统一编码标准和统一数据信息平台，为线损统计、计算提供了自动、可靠、完整的数据源；
How useful and reliable are construction statistics?
建筑统计的有用性与可靠性如何？
The error statistics of analysis methods also showed that this method was accurate and reliable.
从分析方法的误差统计角度，也说明该方法准确、可靠。
Quantitative analysis of the surface movement induced by mining of underground useful deposit should be made based on the reliable data obtained by using the probability statistics method.
文中针对地下矿床开采引起的地表移动问题，提出了采用概率统计的方法来对地表移动进行定量分析，为地表变形分析提供了可靠的数据。
Before statistics and analyzing the data, I have analyzed the internal consistency of the items, the coefficient of the reliability is 0.91, so this investigation is reliable.
统计与分析数据之前，对各项策略的内在一致性进行了分析，信度系数为0.91，所以此次调查结果是可信的。
Grey statistics method is more objective and reliable comparing with fuzzy hierarchy estimation, thus it is an ideal method for optimization of project schemes.
比较这两种方法，灰色统计评估法比模糊层次评价法更客观可靠，是一种比较理想的项目方案优化方法。
Robust statistics provides methods which give reliable results even when the data deviate to a certain extent from statistical assumptions.
稳键统计学提供了一种当数据一定程度上偏离统计假设时也能给出可靠结果的统计方法。
Robust statistics provides methods which give reliable results even when the data deviate to a certain extent from statistical assumptions.
稳键统计学提供了一种当数据一定程度上偏离统计假设时也能给出可靠结果的统计方法。
应用推荐