头盔

The men that were in them were dressed in all black uniforms with powder blue helmets. Some wore what looked like baseball caps. All of them were powder blue梟ow I know it to be United Nation抯 blue.

他们都穿着全黑色的制服和粉蓝色的头盔；有的穿的像棒球选手，穿的衣服带有粉蓝色现在我知道那是所谓United Nation 的蓝色。

Optical assessment of a projection lens for head-mounted projective displays in visual space［J］.

投影式头盔物镜设计在视空间的性能评价［J］。

Optical assessment of a projection lens design for head-mounted projective displays in visual space .

投影式头盔物镜设计在视空间的性能评价。

A detailed assessment of a projection lens design for Head-mounted projective displays in visual space is presented. The methods and the formula are given.

对一款折／衍混合投影式头盔物镜进行了"眼睛转动"时的视空间评价，给出了评价方法和计算公式。

One of the most important safety devices in Formula One racing is the driver's helmet.

其中最重要的安全设备，在一级方程式赛车是司机的头盔。

N\nThe warriors of the Soomro cannot claim exclusively an Arabian or a Rajput loyalty to the way they fight – their armor is a mixture of Arab mail, Indian scale, and Iranian lamellar, their swords inspired by the long-narrow blades of the ancient Umayyad invaders, and their helmets bought often from traveling Arab merchants.

苏姆罗战士不能自称奉行着阿拉伯或者拉其普特的战斗方式，他们的盔甲融合了阿拉伯链甲、印度鳞甲和波斯的轻甲。他们的剑灵感在于长而薄的叶状剑身，这源自于古代伍玛亚德的侵略者。他们的头盔又类似于阿拉伯商人。

"Remember, objects in the mirror are actually behind you."-- On a motorcycle helmet-mounted rear-view mirror.

一种摩托车头盔上的后视镜上写着："切记：镜中的物体事实上在你后面。"

She cut out a big hole in the front of the helmet so he could see better, and covered him up in all this reflective tape. She made him wear his winter coat underneath everything, and she replaced his sword with a glow stick.

她给罗利的头盔上凿了个大洞，以防他看不见路，在他的盔甲上贴满了反光胶布，又让他里面穿棉袄，裹得严严实实的，还把他的宝剑换成了荧光棒。

"We chose a bicycle helmet because they're the most ergonomic ones," Rojas said.

罗雅斯说："之所以选择自行车头盔是因为它最实用。"

You should also wear a helmet when cycling, and ensure children wear protective head-gear when skateboarding or roller blading.

你也应该戴上头盔时，骑自行车，并确保儿童穿着防护头部齿轮时，滑板或直排滚轴。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。