Cover painting by Robert Schulz

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| Transcriber's Note |

| |

| The chemical symbol for carbon dioxide has been shown as |

| CO_2 to depict a subscript 2. |

| |

| In the following words, the hyphen has been removed to |

| conform to majority use in text. |

| brain-storm |

| loud-speaker |

| |

| The following words with and without a hyphen were left as |

| such because of equal prevalence of both forms: |

| half-way halfway |

| pay-load payload |

| rocket-lift rocketlift |

| sun-lamps sunlamps |

| hand-hold handhold |

| pin-points pinpoints |

| |

| "overall" and "over-all" were left as such since the writers |

| are different (The narrator and a character). |

| |

| The following typos have been corrected: |

| Adorning Adoring |

| level lever |

| runing running |

| shed Shed |

| thiry-nine thirty-nine |

| |

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Space Tug · 第 39 / 39 题