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1·If this is not helpful, a full-face mask may be considered.

如果这不是有益的，一个完整的面罩可以考虑。

2·A typical full-face air-purifying respirator, used here with a hood and suit for extra protection.

常见的全面罩过滤呼吸器，这里与提供更多保护头罩和防毒服配合使用。

3·The photograph of each visa applicant must be an unmounted full-face photo, taken within the past six months.

每一位申请人的照片必须是无边框的，于最近六个月内所拍摄的正面照片。

4·Usage: take appropriate full-face coated with 10 to 15 minutes to complete absorption, no need to wash, easy to use.

使用方法：取适量全脸涂敷10~15分钟至完全吸收，无须水洗、方便使用。

5·We had two six-wheeler trucks, too, but it was warmer in the buggy: you have an extra layer of clothing and a full-face helmet.

我们还有两辆六轮卡车，但是在冰车里更暖和：你可以多穿层衣服戴封闭式头盔。

6·In this case, a full-face respirator is called for. It provides a clear face mask or clear eye pieces that protect the eyes as well.

这种情况下需要用到全面罩呼吸器，可以提供透明面罩或者只是眼部透明，就同时保护了眼睛。

7·If you have ever seen a firefighter wearing a full-face mask with an air tank on his or her back, then you have seen an SCBA system.

如果你曾看到消防员穿戴全面罩防毒面具时，背上还有一个空气瓶，那么你就见过SCBA系统了。

8·The most significant upper body protectors for expert riders include full-face helmets, spine protector and backpack hydration system.

最显著的上半身保护专家车手包括全断面头盔，脊柱保护者和背包水化系统。

9·The code that says: no synthetic blue jackets with body armour (they are for sissies like me), no full-face helmets (also for girly-men) and gloves are only to be worn in snowstorms.

规则是这么写的：没有合成的蓝色的护体夹克（它们是为像我这样的胆小鬼设计的），没有全罩式安全帽（为娘娘腔的男人设计的），手套是只在暴风雪天戴的。

10·She looked him full in the face.

她径直望着他的脸。《牛津词典》