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This is the rule of thumb for anybody who is looking for a second hand binocular with maximum performance: If it is a Porro, it should have been made after 1980 (availability of multi layer coating), if it is a roof prism, then not earlier than 1990 (phase-shift coating).

所以对二手镜子光学表现有要求的买家而言，这里有一条基本原则：要是买保罗镜，最好是1980年以后的，如果买屋脊镜，就别买1990年以前的。

Whoever is searching for a current line high end 8x50 will probably fail to find a decently priced Porro glass, but end up with a roof-prism design such as Leica's Ultravid or Swarovski's SLC and will have to pay a premium.

谁若在搜寻当前生产的高端8x50，将无法找到合适价格的保罗镜，只能找到屋脊镜如Leica's Ultravid或者Swarovski's SLC，并且要付出更多费用。

My strength is dried up like a potsherd, and my tongue sticks to the roof of my mouth; you lay me in the dust of death.

我的精力枯干，如同瓦片。我的舌头贴在我牙床上。你将我安置在死地的尘土中。

A powerboat was to pick us up that afternoon. We would leave by the porch roof.

当天下午有一艘汽艇来接我们，我们将从前廊的屋顶上撤离。

A powerboat was to pick us up that afternoon. We would leave by the porch roof. dedecms.com

当天下午有一艘汽艇来接我们，我们将从前廊的屋顶上撤离。

A powerboat was to pickus up that afternoon. We would leave by the porch roof.

当天下午有一艘汽艇来接我们，我们将从前廊的屋顶上撤离。

A powerboat was to pick us up that afternoon. Wewould leave by the porch roof.

当天下午有一艘汽艇来接我们，我们将从前廊的屋顶上撤离。

The rain drummed against the tin roof of the prefabricate d laboratory at Great Baddow in essex, where I was working as a Navy scientist attached to the Marconi Company

雨点落在埃塞克斯郡大巴多的、用预制构件盖成的实验室的铁皮屋顶上，发出咚咚的响声。当时我做为一名海军科学家，配属于马克尼公司，正在那个实验室工作。

Prefabrication of roof pipe, according to installation experience before, please follow our advice to handle it.

关于顶棚管的预组合问题，根据以往安装经验，还是请按照我们的意见处理。

The valve is installed in the fixed roof tank ventilation to reduce the evaporation loss of oil control tank pressure.

该阀是安装在固定顶罐上的通风装置，减少油品蒸发损耗，控制储罐压力作用。

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。