sapling（）

A.work hard

B.young tree

C.young animal

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发布时间：2022-12-04

更多“sapling（）”相关的问题

第1题

a. as quiet as a lamb/mouse b. as silent as a grave c. as wise as Solomon d. as timid as a har

a. as quiet as a lamb/mouse

b. as silent as a grave

c. as wise as Solomon

d. as timid as a hare

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第2题

已知：Car=60%、Sar=2%、Har=1%、Mar=10%、Aar=20%、Nar=2%、Oar=5%，煤的低位发热量Qar,net,p=20935kJ/kg。求：

已知：C_ar=60%、S_ar=2%、H_ar=1%、M_ar=10%、A_ar=20%、N_ar=2%、O_ar=5%，煤的低位发热量Q_ar,net,p=20935kJ/kg。

求：

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第3题

已知锅炉每小时燃煤100t，该煤的成分为：Car=51.625%、Sar=1.0%、Har=3.0%、Mar=13%、Aar=20%、Nar=1.375%、Oar=10%

已知锅炉每小时燃煤100t，该煤的成分为：C_ar=51.625%、S_ar=1.0%、H_ar=3.0%、M_ar=13%、A_ar=20%、N_ar=1.375%、O_ar=10%，锅炉房温度为30℃，β=0.077，在完全燃烧情况下，若测得炉膛出口处RO₂=14%，而排烟处(RO₂)_py=12.5%。求每小时漏入烟道的干空气量。

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第4题

某无烟煤的干燥无灰基成分C_daf=90.49%，H_daf=3.72%，S_daf=0.48%，O_daf=3.86%，N_daf=1.45%，干燥基灰分A_d=20.93%，收到基水分M_ar=8.18%，则以下计算正确的是()。

A.C_ar=65.7%

B.O_ar=2.8%

C.S_ar=0.35%

D.H_ar=1.05%

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第5题

What idea was gradually formed in Terry's mind during his recovering stage？A．Earning money

What idea was gradually formed in Terry's mind during his recovering stage？

A．Earning money.

B．Cutting off the other leg.

C．Running across the country.

D．Exercising har

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第6题

已知条件列于下表中，计算某重油锅炉的炭黑粒子辐射减弱系数并对计算结果进行分析与讨论。某燃烧重油的锅炉

已知条件列于下表中，计算某重油锅炉的炭黑粒子辐射减弱系数并对计算结果进行分析与讨论。

某燃烧重油的锅炉的已知条件

受热面	α"	θ"(℃)	T"(K)	C_ar(%)	H_ar(%)
炉膛、大屏、壁式再热器	1.02	1097	1370	86.82	11.16
后屏	1.025	1021	1294	86.82	11.16
中温再热器	1.03	893	1166	86.82	11.16
后水引出管	1.04	886	1159	86.82	11.16
高温再热器	1.05	811	1084	86.82	11.16
悬吊管	1.06	734	1007	86.82	11.16
低温过热器垂直段	1.07	700	973	86.82	11.16
辖向室	1.075	656	929	86.82	11.16
低温过热器水平段	1.08	454	727	86.82	11.16
省煤器	1.09	401	674	86.82	11.16
空气预热器	1.1	140	413	86.82	11.16