发现

Hungarian Ignaz Semmelweis (1818-1865), from the Vienna Maternity Hospital, noticed that a ward attended by medical students had a death rate of about 20 percent while a ward attended by midwives had a death rate of 3 percent.

匈牙利Ignaz Semmelweis (1818-1865)，来自维也纳妇产医院，发现：医学生管理的的病房死亡率约百分之二十，而助产士护理的死亡率百分之三。

The two authors define the middle class abstemiously, as those who spend $2-10 a day

这里的define是定义，把中产阶级定义为每天花2-10美元的人，而不是"发现"

We have found that a likewise capital market with stocks and loans being the major means to save for the future and gain capital accruement has the inner vulnerability—that is, if the former market equilibrium has been disturbed, the market has the inclination to fall down or go up continuously.

发现：一个没有套期保值机制的以股票和信贷为资产增值和储蓄手段的资本市场具有内在的"脆弱性"（一旦原有市场均衡被打破，市场有持续下跌和持续上涨的倾向）。

Based on varying process of generator terminal parameters after excitation fault, shortages of excitation protective principle of static stability boundary and asynchronous impedance boundary are analyzed. It proposed that excitation fault research relates to large-disturbance stability. Because dynamic power-angle character of generator after excitation fault is non-sinusoidal, there are differences between dynamic power-angle character and static state power-angle character. So it isn't ideal to protective operation result based on small-disturbance stability and static stability boundary criterion. At the same time, it proposed that asynchronous boundary impedance criterion is a constant reactive power circle moving adown j Xd′. It can ensure complete loss-of-excitation generator measuring impedance enter into the circle, but can't ensure the other condition measuring impedance including impossible losing synchronism enter. So loss-of-excitation protection would be maloperation when system voltage drops short and recovers or generator rejects load.③Based on stability principle, it puts forward setting conditions and calculation method of generator loss-of-excitation protection by direct measuring power-angle.

以励磁故障后发电机端的相关参数的变化为基础，通过对以静稳定边界和异步阻抗边界作判据的两类三种现行励磁保护在原理上存在的缺陷分析，发现：励磁故障是一个大干扰稳定性问题，励磁故障后的发电机的动态功角特性与静态功角特性有很大的差异，已远非正弦曲线，因此基于小干扰稳定性原理、以静稳定边界作判据的保护必然动作不理想；异步边界阻抗判据是一个下移j Xd′的等无功阻抗圆，它可以保证完全失磁后的发电机测量阻抗能进入该阻抗圆，但不能保证完全失磁之外的其它状态不会进入该阻抗圆，因此在系统电压短时下降或发电机突然甩负荷等情况下可能启动该保护使之误动。

Nsted acid ionic liquids were inactive for the alkylation of isobutane with butene.In contrast,the chloroaluminate ioni c liquids were very active for the alkylation.However,the qualities of the alkylate oils using chloroaluminate ionic liquids were unsatisfied and worse than that of the products in the industrial sulfuric acid process obviously.

发现：所制备Bronsted酸离子液体无催化烷基化反应活性；而氯铝酸离子液体则具有很高的催化烷基化反应活性，但所得烷基化油质量较差，明显低于工业硫酸法水平。

The computing services weave themselves into the fabric of everyday life until they are indistinguishable from it. Devices in Pervasive Computing Environments have some features such as large-scale, mobility, alterability.

普适计算环境中的设备具有大规模性、移动性、可变性等特点，给手工配置、发现、使用服务带来了极大的挑战，而普适计算的透明性要求系统能够动态地自动配置、管理、协作，而不是打扰用户。

When treated withlow-valent titanium, a five-member ring 3H,4H-cycl[3,2,2]azine wasobtained.

发现〓可以促进羰基与双键偶联生成了不常见的六元环，制得了4H，5H，5H-3-Hydroxy-cycl[3，3，2]azine。

Barrell and Pain (1999b) find that the initiation of anti-dumping cases has had a significant effect on the pattern of Japanese manufacturing investment, whereas Bloningen (2002) maintain that "tariff-jumping" is limited only to MNEs from industrialized countries.

barrell和痛苦（ 1999 ）发现，发起反倾销案件中，已发挥重大的作用，对格局的日本制造业投资，而（ 2002 保持"零关税跳"是仅限于跨国企业来自工业化国家。

After Basha was" discovered" by a French couple in the early eighties, the Miao people of Basha have gradually broken out of their isolated way of life, and their unique culture has become known to the outside world.

岜沙被一对法国老夫妇"发现"于80年代初，自那以后，岜沙苗族逐渐突破与世隔绝的生存方式，以其独特的文化为外界所知。

Despite her pench for chitchat, Yvonne was no birdbrain, Martin discovered.

马丁 发现，尽管伊冯非常喜欢瞎聊，可她并不是没头脑。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。