现在扶植和促进科技的机构到处都是，但(这样的机构)曾一度非常稀少。
Institutions Institutions that foster and promote technology are now everywhere, but once were quite rare.
拮抗性试验结果表明，放线菌拮抗菌虽然广泛分布于土壤中，但具有强烈抑菌作用的拮抗性菌株是非常稀少的。
In antibiotic test, the datum showed that the antagonistic Actinomyces extensive distribute in the soil, but the strongly antagonistic Actinomyces were few.
拮抗性试验结果表明，放线菌的拮抗菌虽然广泛分布于植物根际土壤中，但具有强烈抑菌作用的拮抗性菌株是非常稀少的。
In antibiotic test, the datum showed that the antagonistic Actinomyces extensive distribute in the plant rhizosphere soil, but the strongly antagonistic Actinomyces were few.
拮抗性试验结果表明，放线菌的拮抗菌虽然广泛分布于植物根际土壤中，但具有强烈抑菌作用的拮抗性菌株是非常稀少的。
In antibiotic test, the datum showed that the antagonistic Actinomyces extensive distribute in the plant rhizosphere soil, but the strongly antagonistic Actinomyces were few.
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