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Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.

合成了非天然3-(4-噻唑基)-D,L-盐以及三个中间体,其结构分别通过红外光谱、磁共振、元素分析、等测试手段得到确证

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The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced.

介绍降薄层比较法测量熔标准物质熔的测量装置的构成与工作原理。

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听力文摘

Composition of the molecule, the melting point.

关于分子组合、熔点

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PBS趣味科普

Now pressure does lower the melting point of ice.

压力确实会降低冰的熔点

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传说之境

Finally, at 0 degrees we reach the melting point of ice.

最后,在 0 度,我们达到了冰的熔点

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怪奇物语 第

During fractional distillation, hydrocarbons are separated according to their......- Melting point.

分馏烃类以什么分离开的?- 熔点。

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PBS趣味科普

Lower melting points, so these are your grilled cheese cheeses.

较低的熔点,所以这些你的烤奶酪。

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透视百科科技类

That's hot enough to melt tungsten, the metal with the highest melting point in the universe.

其热度足以融化钨,宇宙熔点最高的金属。

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Scishow 精选系列

And because Form IV has a lower melting point than Form V, the unwanted crystals melt again.

由于形态4比形态5熔点低,需要的晶体再次熔化。

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PBS访谈环境系列

And this wouldn't be possible if the ice was too warm, too close to the melting point.

而如果冰太温暖,太接近融点,这可能的

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Scishow 精选系列

All of them have different melting points, and all of them affect the final texture of the chocolate.

这6种结构都有同的熔点,而且它们也会影响巧克力最终的口感。

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Crash Course 综合篇

Because it's an amorphous solid with bonds of varying strength, glass doesn't have an exact melting point.

因为玻种由强度定的化学键链接成的非晶固体,它没有确定的熔点。

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经济学人(汇总)

The material of these edges has a higher melting point and remains solid (otherwise it would count as welding).

这些边缘的材料要具有较高的熔点并保持固态(否则将被算作熔化)。

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Asap SCIENCE 精选

This solid has a much lower melting point than cocaine, allowing it to be smoked, as opposed to snorted.

这种固体的熔点比可卡因低得多,使其可以吸食,而从鼻吸。

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Crash Course 综合篇

It's melting point is much higher but it melts at an exact temperature and has no pliable in-betweeny state.

它的熔点要高得多,重要的它有确切的熔点,所以会变得和蜜糖样。

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21世纪英文报

The robots in the study were made from gallium, a soft metal with a low melting point of 30 C.

该研究的机器人由镓制成,镓种软金属,其熔点低至约 30 摄氏度。

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趣味化学实验:Periodic Videos

Like Sodium it'ss quite a low melting point metal.

就像钠样, 它熔点很低的金属。

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问答进行

This happens to basically every solid near its melting point.

基本上所有接近熔点的固体都会发生这种情况

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透视百科美食类

Halloumi is white and has a salty flavor and is often served grilled or fried because of its high melting point.

哈罗米白色的,有点儿咸味,由于熔点较高,通常以烧烤或油炸的方式食用

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Asap SCIENCE 精选

Not so fast, unsaturated fat has a lower melting point and so its natural state is less solid, like vegetable oil.

别这么快下定论。饱和脂肪的融点比较低,所以它在自然状态下那么容易凝固,就像植物油样。

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Veritasium真理元素

The filaments changed from carbon to tungsten, which has a very high melting point.

灯丝由碳变成了钨,钨的熔点非常高

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化学 Crash Course

For that reason, these solids generally tend to be soft with fairly low melting points.

出于这个原因,这些固体通常趋于柔软且熔点相当低

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