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变褐色

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But until now, conventional wisdom heldthat brown fat dwindles with age and becomes physiologically unimportant.

但是到现在为止,传统理论认为褐色脂肪随着年龄的变化,变得对生理不重要了。

In autumn the leaves change from green to brown.

变秋天树叶由绿色变为褐色。

In the enzymatic reaction, the browning substrates are oxidized toο-quinones and finally polymerized into the brown-colored by-products.To identify the browning substrates caused by PPO of pericarp tissues of litchi fruit, the experiments were conducted for the first time to separate, select and purify these substrates.

一般认为荔枝采后褐变主要是由于果皮细胞中多酚氧化酶与酚类底物区域化分布的破坏而导致酶促反应的发生,表现为酚类物质被催化氧化为醌,后者则通过聚合反应形成褐色产物。

The nuclear sphere, first red, then become purple-brown, mature in July.

核球形,初呈红色,后变紫褐色,7月成熟。

Culms ca. 8 m, ca. 2.5 cm in diam.; internodes dull purple-green, becoming green with lower internodes tinged purple, to 35 cm, initially white powdery; wall ca. 5 mm thick; nodal ridge slightly elevated, as prominent as sheath scar; intranode ca. 5 mm. Culm sheaths pale red-brown, sometimes tinged green, sparsely to densely speckled, dark brown and glabrous along margins, sparsely strigose; auricles and oral setae well developed, purple; ligule purple, truncate to arcuate, short but broad, margin fringed with purple-tinged cilia; blade reflexed, purple to green, crinkled.

秆约8米,约厘米直径;节间愚笨紫色绿色,变得绿色与低节间紫色地微染着,令35厘米的是,最初白色粉状;壁约5毫米厚;节的稍隆起脊,象鞘痕一样突出; intranode约5毫米竿箨浅红棕色,有时微染绿色,疏生对浓密有斑点,暗褐色和沿边缘,疏生糙伏毛;叶耳和口头的刚毛发育良好,紫色;叶舌紫色,削去到弧曲,短但是辽阔,用紫色微染的cilia作为边缘的边;叶片反折,对绿色,皱曲紫色。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。