During the production, using recovery materials can effectively reduce costs and enhance economic efficiency; however, there have some following notes of injection with recovery materials.

在生产中，采用回头料可以有效地节省成本，提高经济效益，但回头料在进行注塑时有以下几点值得注意。

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The injection controllers currently used in this field can't accurately control the dispensed volume and thus lead to the low injection efficiency and survival rate.

目前，生物工程界普遍应用的手工注射控制器不能精确控制注射量，注射效率和成活率低下。

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The injection efficiency of the ROIC is simulated by the computer.

对读出电路的注入效率进行了计算机模拟。

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Forced induction, direct injection and volumetric efficiency have all helped to render big 12's irrelevant.

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The move has been years overdo, auto manufactures moved to fuel-injection systems year ago for greater fuel efficiency, but NASCAR feared the change could open new doors for cheating.

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Automakers have been achieving incremental improvements in the efficiency of their conventional engines with new technologies like direct-injection, six-speed transmissions, turbo-chargers and start-stop systems.

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