50 cm

例句

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1.
To be able to see clearly the word prevail, at least 50 cm to 75 cm distance, thus reducing the harm of electromagnetic radiation.
为了能够清楚地看到这个字为准，至少50厘米到75厘米的距离，从而减少了电磁辐射的伤害。
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2.
Herbs annual, yellow-green, 20-50 cm tall, with a strong odor, covered with stalked, glandular hairs.
一年生草本，黄绿色，20-50厘米高，具一种强壮的气味，为柄，腺毛所覆盖。
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3.
Trunk to 50 cm d. b. h. Branchlets densely puberulent with a few much longer hairs, usually tipped with slender inconspicuous spines.
通常，树干兑50厘米直径小枝密被微柔毛具一些非常长毛端部具纤细不明显刺。
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4.
Culms decumbent, rooting at lower nodes, erect shoots up to 50 cm or more tall, nodes retrorsely pubescent.
秆外倾，在下部节上生根，更高50厘米或的直立嫩枝可达，节反曲的短柔毛。
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5.
Provides a directed, concentrated beam of light owing to its 50 cm long flexible arm.
有50厘米长的柔性灯臂，可以提供直接、集中的光束。
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6.
Between 120-150 cm should be maintained, at least not less than 50 cm.
一般应保持120~150厘米之间，最少也不得小于50厘米。
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7.
Disk tubular, completely surrounding ovary; shrublets, usually less than 50 cm tall.
花盘管状，完全围绕子房；小灌木，50厘米高的不到的通常。
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8.
As for the computer, maintaining 50 cm distance, it will greatly reduce the electric field strength.
至于电脑，保持50厘米的距离，这样会大大降低电磁场的强度。
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9.
Leaves simple, alternate, to 50 cm, with or without persistent or deciduous amplexicaul wings.
单叶，互生，达50厘米，有或没有宿存或落叶的抱茎翅。
www.flora.ac.cn
10.
Herbs perennial. Stems caespitose, ascending, ca. 50 cm, with evident furrows.
多年生草本茎丛生，上升的，约50厘米，具明显棱槽的。
www.flora.ac.cn