所测结果对高羊茅的养护和管理有一定的参考价值。
Measuring results had certain reference value to maintenance and management of tall fescue lawn.
固体电解质是定氧测头的核心材料。
Solid electrolyte is the most important part for oxygen probe.
我们通常在混凝土灌注后二十八天测 定其强度。
We usually measure the strength of concrete at 28 days after it has been cast.
我们通常在混凝土灌注后二十八天测 定其强度。
We usually measure the strength of concrete at 28 days after it has been cast.
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