horizontal return tubular boiler 卧式回管锅炉
horizontal return tubular combi boiler 卧式回管锅炉
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As shown in Figure 4, you get a blank screen, a horizontal rule, and a return value of 1.
您得到的是一个空白的屏幕，一条水平线和返回值1，如图4所示。
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The vertical axis (Y axis) is the compounded portfolio return and the horizontal axis (X axis) is portfolio risk as measured by the annual standard deviation of return.
FORBES: Basics of Asset Allocation (Part 2 of 2)
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