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It is proved that the pressmark of tooth root, the state of carbide and remanentelements in the material have different effects on the toughness of POwer hacksaw blades.

结果证明,机用锯条压痕、基体碳化物状况以及材料中残存元素等对机用锯条韧性有同程度影响。

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It holds that main causes promoting crack on martensite stainless steel are gross martensite and crystal boundary carburet and secondary phase distributed along crystal boundary.

文章认为,粗大马氏体组织、晶界碳化物以及沿晶界“第二相”组织是促使马氏体锈钢产生裂纹主要原因。

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The crack initiates at stress concentration point in the root of weld, where has much more martenite, carbide and inclusion, and the serious hydrogen segregation.

裂纹均在焊缝根部应力集中处萌生,该处马氏体含量比较大,碳化物及夹杂物较多,氢偏聚现象严重。

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The catalysts on studying can divide into two kinds: the transition metal bifunctional catalysts and the nitride, carbide and oxycarbide catalysts of transition metals.

目前,正丁烷脱氢异构催化剂可以为两类,过双功能催化剂和过氮化物、碳化物和碳氧化物催化剂。

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Transformation mechanism of carbides and their effect on the stress rupture property were investigated in a Ni-base single crystal superalloy with microcontent of carbon.

研究了一种含微量(0.015%)碳镍基单晶高温合在热处理和持久过程中碳化物演化机制以及各种碳化物对合持久性能影响。

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Although PM has solved the problem of carbide segregation and crassitude fundamentally, it has complicated technics and extortionate cost, so restricts its application.

粉末冶虽然从根本上解决了碳化物偏析和粗大问题,但其工艺复杂,成本过高,应用受到限制。

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"aragonite: an orthorhombic mineral form of crystalline calcium carbonate, dimorphous with calcite."

文石结晶富钙碳化物一种正交晶矿物,具有方解石两种晶态。

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科学60秒 听力 2014年9月合集

The 1987 Montreal Protocol phased out the use of chlorofluorocarbons, or CFCs, responsible.

分阶段撤销氯碳化物、氟氯碳化物、以及其他一些会对臭氧层造成破坏的物质的使用。

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PBS英语讯息

HFCs help cool refrigerators and air conditioners, but scientists say they help fuel global warming.

氢氟碳化物有助于冰箱和空调的冷却,但科学家称它们在加剧全球变暖。

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科学60秒 听力 2014年9月合集

Because CFCs are also powerful greenhouse gases.

因为氟氯碳化物是强大的温室气体。

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VOA 常速 2016年12月合集

And finally, 200 Parties of the Montreal Protocol agreed to the Kigali Amendment that will gradually reduce the production and consumption of hydrofluorocarbons, powerful greenhouse gases that are commonly used in refrigeration.

,《特利尔议定书》的200个缔方达成了《基加利》,将逐渐减少制冷中常用的具有强温室效应的氢氟碳化物的产生和消耗。

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双语版 TED-Ed 演讲精选

While the ban was a win for the climate, as CFCs are potent greenhouse gases, the alternatives that replaced them — hydrofluorocarbons, or HFCs — are too.

这个禁令对气候十分有利;CFC 是强效温室气体,而取代它们的替代品,氢氟碳化物(HFC)也是。

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VOA 常速 2016年11月合集

And on October 15th, nearly 200 Parties of the Montreal Protocol agreed to an amendment that will reduce global HFC levels by 80 to 85 percent by the year 2047.

10月15日,《特利尔议定书》的近200个缔国通过了一项将在2047年之前削减全球80%-85%的氢氟碳化物排放。

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VOA慢速英语_世界

But HFCs are said to be strong greenhouse gases and account for an estimated 2 percent of all human-caused warming in the atmosphere.

但氢氟碳化物据说是强烈的温室气体,估计占所有人类造成的大气变暖的2%。

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Vox 观点

So in 2016, the Montreal Protocol was amended to include HFCs and now they are being phased out too.

因此,2016年,《特利尔议定书》被订,将氢氟碳化物纳入其中,现在它们也正在被逐步淘汰。

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PBS英语讯息

In 1984, a gas leak at a carbon, at a union carbide plant in Bhopal, India, killed at least 4,000 people.

1984年,印度博帕尔发生了联合碳化物工厂气体泄漏事件,造成至少4000人死亡。

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VOA 常速 2016年11月合集

These chemicals, which are commonly used in refrigeration, can have 10,000 times more global warming potential than carbon dioxide.

氢氟碳化物通常用于制冷,其对全球变暖的影响是二氧化碳的10000倍。

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VOA慢速英语_世界

The rule aims to reduce the use of hydrofluorocarbons, called HFCs, by 85 percent over the next 15 years.

项规则的目的是在未来15年内将氢氟碳化物(HFCs)的使用量减少85%。

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VOA慢速英语_世界

One of the most harmful HFCs, called R-410 A, is used in the second most common kind of air conditioners in Africa, the AP reported.

据美联社报道,危害大的氢氟碳化物之一,被称为R-410A,用于非洲第二常见的空调。

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PBS英语讯息

The U.S. Environmental Protection Agency has finalized a rule to sharply limit the use of coolant gases known as HFCs.

美国环境保护署确定了一项规则,严格限制使用叫作氢氟碳化物的气体冷却剂。

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TED演讲(视频版) 2023年11月合集

We managed to save the ozone layer from CFCs with the help of the Montreal Protocol.

我们借助特利尔议定书成功拯救了臭氧层免受氟氯碳化物的侵害。

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托业语法

Texas Carbide is looking for three marketing professionals who have work experience in the textile industry.

德克萨斯碳化物公司正在寻找三位具有纺织行业工作经验的营销专业人士。

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