总抽样比 [统计] overall sampling fraction
抽样总体 population ; sampling population
总抽样率 over-all sampling fraction
被抽样总体 sampled population
总群抽样 parent population sampling
柱式总RNA抽提法 column total RNA extraction
抽气总管 air extraction main
抽水机总成 water pump assembly
被抽样的总体 [统计] population sampled
抽筒器总成 retractor assembly
如果你真想保持自己好的健康状况，你就不该总抽那么多烟。
If you really want yourself to be in good health, you must not always be smoking so much.
马尾松TMP与酸性亚硫酸盐浆中甘油三酯含量较高，约占总抽提物的50%。
The results showed that the triglyceride content was relatively high, about 50% both in the total extractive of masson TMP and acid SP.
一般游梁式抽油系统的总效率应为50%左右，若低于此应提高其性能。
General beam pumping system should be the overall efficiency of about 50% if less than this should improve its performance.
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