Regulation of seed size is a key strategy for improving crop yield and is also a basic biological question.However,the molecular mechanisms by which plants dete
摘要:从架构和内容两方面,全面比对了2019年底颁布的《生产批准和监督程序》(AP-21-AA-2019-31)中“质量系统审查准则”与上一版中“航空器合格审定系统评审大纲”的异同,并就更改显著的内容进行重点分析。 关键词:生产批准和监督程序;质量系统审查准则;航空器合格审定系统评审大纲 Keywords: production approval and surveillance proced
The superfamily of cytochrome P450(CYP)enzymes plays key roles in plant evolution and metabolic diver-sification.This review provides a status on the CYP landsc
摘要:可变旁通活门作动器自身故障是飞机维修工作中的常见故障。曾经发生的一起液压机械组件指示故障,最终排故确认也是由可变旁通活门作动器故障引起,这种情况极其罕见。本文对此故障的原理、排故过程以及处理措施进行了分析回顾,可为后续排故工作提供参考。 关键词:位置反馈;液压机械组件;可变旁通活门作动器;故障隔离;导线束 Keywords: position feedback;hydro-mechani
Light is a critical environmental cue that regulates a variety of diverse plant developmental processes.Cryptochrome 1(CRY1)is the major photoreceptor that medi