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Such facemasks have several designs. One type is affixed to the head with two ties, conforms to the face with the aid of a flexible adjustment for the nose bridge, and may be flat/pleated or duck-billed in shape. Another type of facemask is pre-molded, adheres to the head with a single elastic band, and has a flexible adjustment for the nose bridge. A third type is flat/pleated and affixes to the head with ear loops.

这类口罩有几种设计，其中一类靠两根带子固定在头部，在鼻梁处的调节可以弯曲，帮助口罩贴近脸部，形状是平面/平面打褶或鸭嘴状；另一类是模压成杯罩状的口罩，靠一根松紧带固定在头部，鼻梁处的调节也可以弯曲；第三类也是平面/平面打褶的形状，用耳带固定在头部。

Polymorphisms in FSHB gene and association with egg production traits The SSCP detection of PCR products showed that FSHβpro site was polymorphismic in two population. Six nucleotide variation at G-494A, T-470A, A-464G,-450A insertion, A-405G and A-361G,were identified in promotor region of TaiHu chicken;Three nucleotide variation at A-464G,-450A insertion, A-405G,were identified in promotor region of blue eggshell chicken,three genotype.

FSHβ基因多态性与产蛋性状关系 FSHβ基因5'调控区和外显子3经PCR-SSCP检测发现，两个鸡群在FSHβpro位点都有多态，太湖鸡发现6处碱基差异，分别是：G-494A，T-470A，A-464G，-450插入碱基A，A-405G，A-361G；而绿壳蛋鸡在该位点有3处突变，分别是A-464G，-450插入碱基A，A-405G，有3种基因型。

Mean while in utmost Longitude, where Heav'n With Earth and Ocean meets, the setting Sun [ 540 ] Slowly descended, and with right aspect Against the eastern Gate of Paradise Leveld his eevning Rayes: it was a Rock Of Alablaster, pil'd up to the Clouds, Conspicuous farr, winding with one ascent [ 545 ] Accessible from Earth, one entrance high; The rest was craggie cliff, that overhung Still as it rose, impossible to climbe.

那时，在地的西极，天、地和海洋的会合处，夕阳缓缓降落下去，晚照的光辉平射着乐园的东门。那门由雪花石膏岩凿成，高耸入云，从远处即可一眼望见，只有一条通路，可以上登高处的入口，此处都是透顶突出，不可登攀的，崖峭壁。

There was a slight outburst of frightfulness between the stage-manager and a Voice named Bill that came from somewhere near the roof, the subject under discussion being where the devil Bill's "ambers" were at that particular juncture.

舞台经理和天花板某处叫Bill的谱曲者有些恐慌，那时正演到该死的Bill那幕还悬而未定&琥珀&。改：舞台经理和天花板上某处一个叫BILL的声音之间忽然爆发出一阵恐慌，争论的主题是在这关键时刻，BILL的&琥珀&何在。

Acetaminophen is one of the most widely used analgesics in the world and is found in more than 100 common over-the-counter and prescription products.

对乙酰氨基酚是世界范围内使用最广泛的止痛剂，是100种最常见非处方药和处方药之一。

The proteins in milk and dairy products were mostly eliminated by the precipitators. Three aseptics and two sweeteners were separated on a C18 column with the mobile phase of methanol -0.05mol/L potassium dihydrogen phosphate under gradient elution. With a diode array detector, acesulfame, benzoic acid, and sorbic acid were detected at 230 nm and sodium saccharin and aspartame were detected at 210nm.

通过加入适量沉淀剂除去样品中绝大部分蛋白质后，采用C18色谱柱分离，以甲醇－0.05mol/L磷酸二氢钾溶液为流动相梯度洗脱，用二极管阵列检测器于230nm波长处检测安赛蜜、苯甲酸和山梨酸，于210nm波长处检测糖精钠和阿斯巴甜。

Below him white asphodels and blue gillyflowers stood abashed and unprotected between the wheelmarks, as though surprised in the midst of a slow pilgrimage from one bank to the other.

在他的脚下，是白色的常春花，和蓝色的紫罗兰，在车轮印之间，显得不安，而没有任何防护，就象是奇怪，这个从一处草坡走向另一处草坡的朝圣者，从它们中间慢慢地跨过去，动作是那么的小心翼翼。

There are two barbels on the chin and two additional filamentous barbels at the jaw.

在下颚处有两根触须，在颌处有两根细如丝的触须。

And all the rest of the clans and their wives.

其馀的各家，男的独在一处，女的独在一处。

And all the rest of the clans and their wives.

其余的各家，男的独在一处，女的独在一处。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。