保护的

Consideration of the structural characteristics of autotransformer, the principles and characteristics of zero-sequence differential protection are analyzed by taking PST1200 as an example, debugging method of zero-sequence differential protection is summed up briefly, the method can well verify the logical function correctness of zero-sequence differential protection, and it has been verified in practical application.

结合自耦变压器的结构特点，以南自PST1200变压器保护装置为例分析了零序差动的原理构成及特点，简要总结了零差保护的调试方法，能够较快且准确的校验零差保护逻辑功能的正确性，并已在实际工作中得到了很好的验证

You have the wild plant to have 1,452 kinds, in which area national kind of protection to have the metasequoia, two kind ofprotections has the gingko and so on 4 kinds, three kind ofprotections 8 kinds, have the species which 石斛 and so on 1Ospecies is borders on exterminates, 6 kinds for the Chinese uniquekind, the Huangshan Mountain unique 2 kinds, the initial contact orthe plant which to Huangshan Mountain names have 28 kinds, You Yimingthe tea "the Huangshan Mountain Mao fong", the famous medicine "theHuangshan Mountain ganoderma lucidum" are renowned at home and abroad.

你有野生植物有1452种，其中属国家一类保护的有水杉，二类保护的有银杏等4种，三类保护的8种，有石斛等1O个物种属濒临灭绝的物种，6种为中国特有种，黄山特有2种，首次发现或以黄山命名的植物有28种，尤以名茶&黄山毛峰&、名药&黄山灵芝&驰名中外。

These branches are protected by protective devices, such as fuses, which are not telemetered.

下面来源断路器网络是径向与许多分行导致1 lkv / 415v变压器供应客户，这些分行所保护的保护装置，如保险丝，不属于遥测。

The resultedα-methylamine was protected by acetyl chloride, and then was chlorosulfonated bychlorosulforic acid at -5℃-0℃followed by treatment with aqueous ammonia givingcompound A in 52.3% yield.

甲基胺再用乙酰基进行保护后，以HSO3Cl为试剂进行氯磺化反应，再用浓氨水进行反应，制得了乙酰基保护的苯磺酰胺类化合物。

Chinese researchers have done a lot of work on researching and protecting the black-necked cranes since 1980. This paper reviews the distribution, population ecology, habitat status and protecting situation of the black-necked cranes in Tibet, some suggestions are proposed for further protection in the future.

本文记述了20世纪80年代以来我国学者对分布在西藏的黑颈鹤研究和保护的成果及其进展；包括黑颈鹤在西藏的地理分布、种群生态、生境现状以及保护管理现状；并对目前黑颈鹤保护所面临的问题提出了相应的建议。

Conservation and research of desert plant diversity is an important part of the biodiversity protection.

荒漠植物多样性研究及其保护是生物多样性保护的重要组成部分。

European law makes it impossible for Google to digitise works still covered by copyright, which in most of Europe stays in force for 70 years after the author's death.

根据欧洲法律，谷歌不得将仍受版权保护的作品数字化。在大多数欧洲国家，版权保护直至作者死后70年才会失效。

Three different connection modes of 3 phase transformer differential protection are introduced.

分析结果表明，变压器△侧相绕组差动保护的TA接线，无论其是否为套管TA ，对匝间故障保护效果都无差异。

Wedge gate valve is usually no valve chamber overpressure protection 2, no clear protection bar gate, not recommended.

契形闸板阀通常没有阀腔超压保护 2、无保护的明杆闸阀，不推荐使用。

In this way, the automatic control, the centralized control and the intelligent self-disposal functions of the motor protection is realized.

这样真正实现了电动机保护的智能保护、集中监控和管理。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。